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AIRMOTIVEikLGi 1- ^-/iiJi 

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September 8, 2006 

f^''-)-.^CXDU:"25^2'^. 7 

U.S. Department of Transportation 

Docket Management System 

400 7th Street, S.W. 

Room PL 401 

Washington, D.C. 20591-0001 

Re: Petition for Rulemaking 

Dear Sir or Madam: 

Petitioner Precision Airmotive LLC ("Precision Airmotive") hereby submits pursuant to 

14 CFR §§ 11.61, 11.39 and 14 CFR pt 39 a petition for rulemaking requesting a 

determination of whether an airworthiness directive should be issued for all general 

aviation aircraA/rotorcraft powered by engines with a Marvel Schebler, Facet and/or 

Precision Aumbtive float carburetor ("Marvel Schebler" carburetors). Precision 

Airmotive is the holder of a Parts Manufacturer Approval ("PMA") for this line of 

carburetors. Precision Airmotive bnings this Petition in its capacity as a PMA holder. 

The name, mailing address and other contact information for the petitioning organization 

is: 

Precision Airmotive LLC 

14800 40th Avenue, N.E. 

Building D 

Marysville, Washington 98271 

Contact: Scott L. Grafenauer, President & General Manager 

Telephone: (360) 658-9926 

Facsimile: (360) 651-8080 

Email: scottg@precisionairmotive.com 

The FAA has issued type certificates for numerous engines that use Marvel Schebler 

carburetors. The overwhelming majority of these carburetors are installed on engines 

manufactured by Avco Corporation, Lycoming Reciprocating Engine Division 

("Lycoming"). Lycoming joins in Precision's request. (See Ex. A.) 

14800 40th Avenue NE * Marysville, Washington 98271 * USA- Phone: (360) 651-8282 • Fax:(360)651-8080 
Scott L. Grafenauer 

September 8, 2006 

Page 2 

Pursuant to 14 CFR § 39.5, the FAA will issue an airworthiness directive when it finds: 

(a) An unsafe condition exists in the product; and 

(b) The condition is likely to exist or develop in other products of 

the same type design. 

Precision Airmotive has received reports criticizing the Marvel Schebler line of float 

carburetors as being inherently unsafe. The reports criticize the underlying design of 

these carburetors including, among other things, the needle valve and seat assembly and 

the body-to-bowl screws. The repoits contend that the Marvel Schebler carburetor's 

design has caused numerous in-fligliLt engine failures in general aviation aircraft. (See 

Exs. B-G.) The authors of these reports also contend that numerous FAA service 

difficulty reports and incident and accident reports substantiate and demonstrate the 

validity of their design criticisms, and demonstrate the existence of a dangerous unsafe 

condition for all users of engines that are certified with Marvel Schebler carburetors. 

(See Ex. H.) They contend that these design defects in the carburetor have resulted in 

numerous in-flight engine failures tliat have caused deaths and personal injuries. (See 

Ex. I.) 

These same sources of information have advised Precision Airmotive that they have not 

communicated their concerns to the FAA. (See Ex. J.) 

We have thoroughly investigated these criticisms and have been unable to substantiate 

the existence of these problems. Rather, our investigation reveals that the criticisms are 

unfounded. 

Nonetheless, the information provided to us, if correct, satisfies the requirements of 

14 CFR § 39.5 because it is indicative of the existence of "an unsafe condition" that 

exists "in other products of the same type design." Thus, if the criticisms are correct, the 

FAA should issue an airworthiness directive. 

Since the FAA is the independent federal agency charged with ensuring the safety of 

aviation and the flying public, we request in the interest of aviation safety that the FAA 

determine whether these design criticisms and the information in the FAA service 

difficulty reports, and incident and accident reports warrant the issuance of an 

airworthiness directive, or other remedial action. 

09/08/06 
Scott L. Grafenauer 

September 8, 2006 

Page 3 

We request that the FAA make this determination as soon as possible. Marvel Schebler 

carburetors have been used in general aviation aircraft since at least the 1940s and 

hundreds of thousands have been produced. We estimate that the active general aviation 

aircraft utilizing these carburetors are incurring millions of flight hours a year. 

Accordingly, given the size of the fleet utilizing these carburetors and the number of 

flight hours they are accruing, if the criticisms are valid, there would exist significant risk 

of injury or death to the flying public. In light of this, it is in the public interest for the 

FAA to determine the need, if any, for remedial corrective action. 

In fijTtherance of the FAA's resolution of this petition, we will provide any and all 

information, assistance, records, documents, engineering drawings, and all relevant 

technical and scientific data available to us, or whatever else the FAA deems necessary, 

to aid the FAA in its determination of whether an airworthiness directive is appropriate. 

Similarly, Lycoming has indicated that it too will provide the FAA any and all records it 

has that will assist the FAA in resolving this matter. (See Ex. A.) 

Respectfully submitted. 

Scott L. Grafenauer 

President & General Manager 

Precision Airmotive LLC 

09/08/06 
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September 8,2006 

U.S. Department of Transportation 

Docket Management System 

400 7th Street, S.W. 

Room PL 401 

Washington, D.C. 20591-0001 

Re: Petition for Rulemaking 

p Dear Sir or Madam: 

Petitioner Precision Airmotive LLC ("Precision Airmotive") hereby submits pursuant to 

P 14 CFR §§ 11.61, 11.39 and 14 CFR pt. 39 a petition for rulemaking requesting a 

*• determination of whether an airwortlidness directive should be issued for all general 

aviation aircrafl/rotorcrafl powered by engines with a Marvel Schebler, Facet and/or 

I Precision Airmotive float carf)uretor ("Marvel Schebler" carburetors). Precision 

Airmotive is the holder of a Parts Mainufacturer Approval ("PMA") for this line of 

carburetors. Precision Airmotive brings this Petition in its capacity as a PMA holder. 

The name, mailing address and other contact information for the petitioning organization 

is: 

Precision Airmotive LLC 

14800 40th Avenue, N.E. 

Building D 

Marysville, Washington 98271 

Contact: Scott L. Grafenauer, President & General Manager 

Telephone: (360) 658-9926 

Facsimile: (360) 651-8080 

Email: scottg(%precisionairmotive.com 

The FAA has issued type certificates for numerous engines that use Marvel Schebler 

carburetors. The overwhelming majority of these carburetors are installed on engines 

manufactured by Avco Corporation, Lycoming Reciprocating Engine Division 

("Lycoming"). Lycomingjoins in Precision's request. (See Ex. A.) 

14800 40th Avenue NE • Marysville, Washington 98271 • USA • Phone:(360)651-8282 • Fax:(360)651-8080 
r 

Scott L. Grafenauer 

September 8,2006 

Page 2 

Pursuant to 14 CFR § 39.5, the FAA will issue an airworthiness directive when it finds: 

(a) An unsafe condition exists in the product; and 

(b) The condition is likely to exist or develop in other products of 

the same type deisign. 

Precision Airmotive has received reports criticizing the Marvel Schebler line of float 

carburetors as being inherently unsafe. The reports criticize the underlying design of 

these carburetors including, among otllier things, the needle valve and seat assembly and 

the body-to-bowl screws. The reports contend that the Marvel Schebler carburetor's 

design has caused numerous in-flight engine failures in general aviation aircraft. (See 

Exs. B-G.) The authors of these reports also contend that numerous FAA service 

difficulty reports and incident and accident reports substantiate and demonstrate the 

validity of their design criticisms, and demonstrate the existence of a dangerous unsafe 

condition for all users of engines that are certified with Marvel Schebler carburetors. 

(See Ex. H.) They contend that these design defects in the carburetor have resulted in 

numerous in-flight eiigine failures that have caused deaths and personal injuries. (See 

Ex. I.) 

These same sources of information have advised Precision Airmotive that they have not 

communicated their concerns to the R\A. (See Ex. J.) 

We have thoroughly investigated these criticisms and have been unable to substantiate 

the existence of these problems. Rather, our investigation reveals that the criticisms are 

unfounded. 

Nonetheless, the information provided to us, if correct, satisfies the requirements of 

14 CFR § 39.5 because it is indicative of the existence of "an unsafe condition" that 

exists "in other products of the same type design." Thus, if the criticisms are correct, the 

FAA should issue an airworthiness duective. 

Since the FAA is the independent federal agency charged with ensuring the safety of 

aviation and the flying public, we request in the interest of aviation safety that the FAA 

determine whether these design criticisms and the information in the FAA service 

difficulty reports, and incident and accident reports warrant the issuance of an 

airworthiness directive, or other remedial action. 

09/08/06 

I 
Scott L. Grafenauer 

September 8, 2006 

Page 3 

We request that the FAA make this determination as soon as possible. Marvel Schebler 

carburetors have been used in general aviation aircraft since at least the 1940s and 

hundreds of thousands have been produced. We estimate that the active general aviation 

aircraft utilizing these carburetors are incurring millions of flight hours a year. 

Accordingly, given the size of the fleet utilizing these carburetors and the number of 

flight hours they are accruing, if the criticisms are valid, there would exist significant risk 

of injury or death to the flying public. In light of this, it is in the public interest for the 

FAA to determine the need, if any, for remedial corrective action. 

In fiirtherance of the FAA's resolution of this petition, we will provide any and all 

information, assistance, records, documents, engineering drawings, and all relevant 

technical and scientific data available to us, or whatever else the FAA deems necessary, 

to aid the FAA in its determination of whether an airworthiness directive is appropriate. 

Similarly, Lycoming has indicated that it too will provide the FAA any and all records it 

has that will assist the FAA in resolving this matter. (See Ex. A.) 

Respectfully submitted. 

Scott L. Grafenauer 

President & General Manager 

Precision Airmotive LLC 

09/08/06 
Exhibits to Precision Airmotive LLC's 

Petitiom for Rulemaldng* 

Ex. A 

Ex.B 

Ex.C 

Ex.D 

Ex.E 

Ex.F. 

Ex.G 

Ex.H 

Ex. I 

Ex. J 

Lycoming Letter to DOT 

Affidavit of Richard McSwain 

Affidavit of Don Sommer 

Report of Richard McSwain 

Report of Don Sommer 

Testimony of Richard McSwain 

Testimony of Don Sommer 

FAA Service Difficult Reports 

Excerpts of Testimony from 

Richard McSwain and Don 

Sommer 

Testimony of Richard McSwain 

Testimony of Don Sommer 

7/13/2006 

9/29/04 

10/1/04 

2/21/06 

12/17/03 

2/17/06 

12/15/03 

2/3/05,2/6/05 

1/9/04 

1/12/04 

2/11/03 

1/13/04 

1/12/04 

1/12/04,1/20/04 

' Some of these exhibits have independent enclosures, many of which 

have been omitted for brevity, but any and all are available upon request. 

Similarly, only excerpts of deposition and trial testimony have been included, but 

entire transcripts are available upon request. 

r 

1 
A itaxtron Company 

Lyoomkig EngbiM, It a dtiMon of Avoo Coipoiadon, • wAoly owMd 

tufaiiidiaiy of Textron Inc. 

aSZOIAwrStfaat Tat 570-327-7259 or 817-280.2S43 

WIINamaport, PA 17701 Fax: 817-27M543 

U.S. Department of Tiansportation 

Docket Management System 

400 7th Street, S.W. 

Room PL 401 

Washington, D.C. 20591-0001 

July 13,2006 

Re: Precision Airmotive LLC ("Precision Airmotive") Petition for Rulemaking 

Marvel Schebler Carburetors 

Dear Sir or Madam: 

The petition for proposed rulemaking of Precision Airmotive relating to the Marvel-Schebler 

carburetor has been reviewed by the Lycoming Engines division of Avco Corporation. Avco 

urges the FAA to make the determination sought therein. 

Avco Corporation will provide any infoimation it has available to it that would assist the FAA in 

making its determination. 

If you have any questions, please contact us. 

Very toiily yours 

Tim J 

General 

CU-l29669Svl 
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AFFIDAVIT OF IJCHARP H. McSWAIN. Ph.D.. P.E. 

STATE OF FLORIDA 

COUNTY OF ESCAMBIA 

BEFORE ME, the undersigneid authority, duly authorized to take acknowledgments, 

personally a]q)eared Richard H. McSwsiin, PhD., P.E., after first being duly sworn, dqx)ses and 

saysdiat: 

1. I am a consulting materials engineer, and principal engineer with McSwain 

Engineering, Inc. in Fensacc»la, Florida. 

2. I have been enqjioyed m materials engineering and materials failure analysis 

continuously for the past 27 years. I was enq)Ioyed by the U.S. Navy as a materials 

engineer with responsibility for materials &ilure analysis and accident investigation and 

ultimately became head of the Metallic Materials Engineering Branch. My curriculum 

vitae is enclosed in Enclosuie 1. 

3. I am currently a registered p'rofessional engineer in the State of Florida by examination 

in both metallurgical en^neeiing and mechanical engineering. 

4. I have analyzed thousands of feilures in both metallic and non-metallic components. 

5. My laboratory has extensive materials failure analysis C£^ability widi state of the art 

scientific equipment 

6. In my research I have found that aircraft carburetor failure is an airworthiness issue and 

is flight safety critical. There have been numerous FAA Airworthiness Directives 

issued concerning Precision Airmotive carburetors, as shown in Enclosure 2. 

7. In my research coiKeming Precision Airmotive carburetors I have found that Precision 

Airmotive has had a histoiy of caihuretor malfunction and failioe due to loosening of 

the carburetor throttle body-to-bowl screws as indicated by internal Precision 

Airmotive (formedy Marvel-Schebler) documents (Enclosure 3) and by FAA Service 

DifBculty Reports (Enclosine 4). 

8. In my research concerning Precision Aimiotive carburetors I have found that Precision 

Airmotive has had a history of caiburetor malfunction and failure due to needle valve 

sticking as mdicated by Precision Airmotive (formeriy Marvel-Sdiebler) and FAA 

documents (Enclosure 5) and by FAA Service Difficulty Reports (Enclosure 6). 

AMnM I 
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9. In my laboratory analysis of Ptecision Airmotive carimretcn^ I have found evidence of 

manu&cturing induced burrs on the stainless steel needle valve sur&ce and machining 

grooves on die bore surface of die t»ass needle valve seat 

10. The Precision Airmotive carburetor stainless steel needle valve burrs and the brass 

needle valve seat machining gtooves constitute manu&cturing defects in the subject 

carburetor and potentially in all-Precision Ainnotive carburetors. 

11. In my laboratory analysis of Precision Airmotive carburetors I have found evidence 

of wear grooves, ridges and deformed material in the brass needle valve seat from 

contact widi the stainless steel needle valve. 

12. In my laboratory analysis of Precision Airmodve carburetors I have found evidence 

of stainless steel material tt^nsifer firom the stainless sieel needle valve to the seat, 

indicative of needle valve binding and sticking. 

13. The Precision Aimiotive caibuiietor material incompatibility between the stainless steel 

needle valve and the brass seat is addressed in the U.S. Patent No. 5385,697, 

"Carburetor Float and Method of Forming Same" (Enclosure 7). The patent, which is 

applicable to Precision Ainnotive carburetors, states diat using a stainless steel-tostednless steel couple instead of brass-to-stainless steel "substantially reduces the wear 

between the clip and the floatni^ntrolled needle valve." However, Precision Airmotive 

continues to use the brass-to-stainless steel material combination for the needle valve 

and seat 

14. The Precision Ainnotive carburetor stainless steel needle coupled with a brass needle 

valve seat is a defective material selection. 

15. In my research concerning Precision Airmotive carburetors I have found that a 

Precision Airmotive major cai^buretor rcpzk kit containing a float valve assembly can 

be procured for $476.62. 

16. Precision Airmotive has be«i presented with sufficient evidence of carburetor 

manu&cturing and material selection defects to be fiilly cognizant of the 

aforementioned defects. Multiple lawsuits (i.e. Blanton v. Precision et al; Kaiso* v. 

Precision, et al.; Eigen v. Precision, et aL; Thomas v. Precision) and Precision 

Airmotive warranty claims (Enclosure 8) have provided sufficient prior notice to 

Predsion Ainnotive of the defective condition of their carburetors. 

17. In my research -conceaming Precision Airmotive carburetors, I have found no evidence 

that Precision Ainnotive has provided any warning of the potential and catastrophic 

failure modes that may occur in the Precision Airmotive carburetors. Precision Aircraft 

Carburetor Service Manual FSM-OHl only requires inspection of carburetor 

components for "abnormal wear... " but does not address the root cause for this wear 

or the potential consequences of the wear. (Enclosure 9) 

( •> 

ABMaiLOl 
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o 18. Despite being ftiUy aware of die carburetor defects and having ample tone to correct 

die defects. Precision Airmotive has £ailed to correct the deficiencies in their 

carburetors. 

FURTHER AFFL\NT S AYETH NAUGHT. 

RI( AIUDRMCSWAIN,PH!D., P.E. 

STATE OF FLORIDA ) 

)ss 

COUNTY OF ESCAMBIA ) 

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The foregoing instrument was sworn to and acknowledged before me this 29th day of SqHember 

2004, by Richard H. McSwain, Ph.D., P.E., who is personally known to me. 

Notary Public \ 

My Commission Expires: 6/19/2005 

Commission No. DD008037 

2006 

(SEAL) 

Nancy H. Pursell 

Printed Name of Notary Public 

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DEPARTMENT OF TRANSPOKTATIO N 

FEDERAL AVIATION ADMINISTRATION 

^ ^ 

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^ ^ 12 AUG uvl 

IMRPl-Y 

REFEMTO: EA-21A 

EASTERN REGION 

FEDEKAI L BUIt.O»«G 

JOHM F. KCNNEDV INTEKHATIONAL AIRPOHT 

JAMAICA. NCW VOMK «I «SO 

SUBJECT: MalfuDctlon or Defect Reports 

Avco Lycoming Dlvlalon • 

Avco Corporation ~~ 

Attention; lltrip7~C, Boba 

- - - THIS DOCUMEffr AND THE INFOBMATION 

CONTAINED HEREIN IS THE PROPERTY OP 

tYCOMING. A TEXTRON COMPANY. ANY 

REPRODUCTION. DISCLOSURE OH USp 

THEREOF IS PROHIBrTED EXCEPT AS 

AUTHORIZED IN WRITING BY LYOOMtNQ. 

RECIPIENT ACCEPTS THE HESPONSIBILTO. 

FOR MAINTAINING THE CONFIDENtlAttTY. 

OF THE CONTENTS OF THIS. OOCUMCm: 

Cbl«£ Quallflctttlon Engineer 

Wllllasuport, Pennaylvanla 17701 AUG 1 6 197 i 

r^ 

Enclosed.for your review are Malfunction oir Defect Beports received from 

the field. Except for the vAgneto cam retaining acrev problem, ^ e other 

service difficulties listed belov have been dlscnsaed vltb you and should 

be or are already being considered for corrective action. 

1. Magneto Breaker- Point Can Screw: Malfunction conalat of the can 

retaining aCrew becoming loose. Listed below are the engines aiid aircraft 

which experienced this failure, some of which resulted in forced landings. 

As you will.note, thla problem ia not confined'-, to any one model but tias 

occurred oii several Lycoming model engines. It is suggested that during 

the 100 hours inspection of the breaker points, inspection and chewing . 

of the cam screw torque be also ^xe«|uii:ed. 

Eneine Model 

K 0-235 

X 0-235-Cl 

A 0-320-E2D 

•5:0-320 

:\ O-320-E 

>10-320-E2A 

. I0-32O-B1A 

A'/K0-36 0 

XO-360-AAA 

< 0-360 

; 0-360 

VO-360-AAA 

;>10-360-AlA 

( 10-360 

I 0-5«i0 

• 0-540-B4B5 

A 10-540-Oi 

\ I0-540-1A5 

y10-54 0 

ZfXi 

L-9688-15 

L-9710-15. 

L-22616-27Ao 

L-12386-36Ar 

L-A398-55A 

L-15248-36A 

L-13806-36A 

L-12767-3i7A 

L-A081-42 ' 

L-882-48 

L-6111-48 

Aircraft 

Champion 

Champion 

Ceasna 

3lawdon 

Pipe r 

Champion 

Flp K 

Mooney 

Pipe r 

Pipe r 

Pipe r 

Pipe r 

Pipe r 

Mooney 

Pipe r 

Pipe r 

Pipe r 

Aero Coomander 

Pipe r 

S/N 

685 

172-57007 

28-25706 

22« 

30-1924 

700089 

28-4988 

28-5697 

28-5360 

28-5000 

32-259 

1015^38 

23-3987 

ReK No. 

N-5168Z 

M-5187X 

N-46042 

N-68086 

M-8852M 

N-5250Z 

M-8768T 

M-6806 ' 

H-3471B 

H-7944H 

H-6SS4jr 

n-7736N 

M-6668Z 

N.3398V 

ltr6454T 

M.6I55Z 

M-6670T 

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1 -' ^ 

5"-' ' 

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- " 

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•70 0 

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( 1 2i Rocker Box Cover: Listed below are 22 incidents of redcer valve 

shafts wearing holes throu^ the rocker box covers. The problem is 

confined to Lycoming 0-320 Mo<lel engines with the parallel valve 

cylinders. Several of the englnea Included In this list were nsnafactured after Lycoming isaued Service Instruction No. 1176, which requires 

the valve rocker shsfts to be-ground and polished to 10 mlcrorinches finish. 

It is suggested that Lycoming give serious consideration to revising their 

present service instruction and require rocker cover removal sooner than 

400 hours of operation. 

Engines Model 

>"^ , 

X 0 

/ : 0 

X 0 

' ' xo0 

A O 

;»f 0 

2<r3, 

•320-E2A 

•320-S2A 

•320-E2A 

•320-A2A 

•320-Z2A 

•320-Z2A 

•320-Z2A 

-320-B2A 

.320-Z2A 

•320-E2A 

•320-B2A 

•320-E2A 

326-E2A 

320-E2A 

•320-

•320-E2A 

•320-E2D 

•320-E2l>' 

•320-E2D 

•320-E2D 

.320-E2D 

•320-D2A 

S/N. 

L-18829-27 

L-25748 

L-18945-27A 

L-27120-27A 

L-19337-27A 

L-19337-27A 

L-25899-27A 

L-17721-27A 

L-16294-27A 

L-18725-25 

L-25387-27A 

L-26334-27A 

L-26903-27A 

L-25289-27A 

L-25799-27A 

L-25730-27A 

L-26161-27A 

i.-25532-27A 

L-5219-39 

Aircraft 

Piper 

Piper 

Piper 

Piper 

Piper 

Plpeir 

Piper 

Piper 

Piper 

Piper 

Piper 

Piper 

Piper 

Piper 

Piper 

Cessna 

Cessna 

Cessna 

Cessna 

Cessna 

Piper 

S/N 

28-23047 

28-25896 

28-23372 

28-26601 

28-25057 

28-25057 

28-26454 

28-22368 

28-21545 

28-23022 

28-22529 

28-25810 

28-26094 

28-26424 

172-56167 

172-58405 

172-58315 

172-58438 

28-1261 

Rejjjte. 

N-9S97W 

H-95343 

N-98S8H 

N-5777* 

H-5754P 

N-3754F 

H-5658U 

N-8464R 

N-6372R 

M-9578W 

M-4189J 

H-95115 

N-98190 

H-7231P 

H-S628V 

R-64278 

N-84050 

M-84353 

N-79966 

3 . Marrel Scheble r Carburetor: Since 1970 ther e have been reports 

of 16 Incidents of throttl e body and bowl'coye r assei^ly-t o carbureto r 

body assembly bolts becoming .loose . The present attachment calls for 

capscrew with locKwashers. Previousl y th e capscrews were saftj ^ wired* 

Engine Model 

- 0-320-E2D 

A 0-320-E2D 

" 0.-320-E2D 

/ 0-320-E2D 

/i^.L0-320-B2Dc 

0-320-E2D 

- 0-3^>D2A 

'rO-320-E2D 

7 0-320-E2D 

• 0-320-E2D 

S/N 

L-26193-27A 

L-21751-27A 

L-23808-27A 

L-25865-27A 

L-23410-27A 

Aircraft 

Cessna 

Cessna 

Cessna 

Cessna 

Cessna 

Cessna 

Piper 

Cessna 

Cessna' 

' iCessna 

S/H 

172-58617 

172-56606 

172-56798 

172-57650 

172-58436 

28-3189 

172-57445 

172-56707 

172-56763 

iSMJSS.' 

N-84801 

N-8406L 

Nr3549l 

N-78517 

N-84531 

N-78792 

N-5918» 

N-46712 

H-35314 

H-35425 

JLYCirre 

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Engine Model 

? 0-320 -

0-320-AlA 

X. 0-320 -

f 0-320-E2D 

. 0-360 

/ 0-360 

S/H 

L-22389-27A 

L-7675-36A 

Aircraft 

Cessna 

Pipe r 

Cessna 

Cessna 

Pipe r 

Pipe r 

172-57796 

25-32 

172-56980 

172-58774 

28-3788 

28-2096 

K * * WO. 

H-78978 

N-6027Z 

M-46001 

M-9631J 

M-8Q30W 

4 . Intak e Pipe ; Llsted'belo w ar e ^0 reporte d failure s oJE Intak e 

pip e cradcln g a t th e flange location . 

n 

Engine Model 

XO-320-E2C 

/.I0-320-B1A 

7 10-320 

X 0^360-A2G 

y I0-360-A2B 

X10-30Q-A2B 

<'tO-360-BlA 

XIO-360-A1A 

. >-I0r360-AlA 

/*7 ^ HI0-360-A1A 

. XH10-360-C1B 

/ f lTk>0 HIO-36O-01A 

' V0-540-E4C5 

T I0-540-G1C5 

\10-540-KlA5 

' • ' _.?io-54rrX0-540-E1B5 

K 10-540-C1C5 

K I0-540-E1A5 

? IO-54b-GlB5 

>10r540-mA5 

Jfl0-540-B1A5 

;V10-540-K1A5 

K IGSO-540-A1D 

> TIO-S40-AU 

V TIO-540-A1A 

>f T1O-540-A1A 

^TIO-540-AlA 

f 10-720 

S/N 

L-23678-27A 

L-3870-55A 

L-13371-36A 

L-3426-51A 

L-2163-5LA 

L-1303-51A 

L-3717-51A 

L-6139-51A . 

L-3936-51A 

L-7433-51A 

L-12175-40 

L-5779-48 

L-7826-48 

L-41.7-48 

L-5i85-:48 

L-347-4<r 

L-6962-48 

L-1819-50 

L-244-61 

L-271-61 

L-630-6i 

Aircraft 

Beech 

Pipe r 

Pipe r 

Beech. 

Beech 

Beech 

Pipe r 

Mooney 

Mooney 

Hughes 

Enstram 

Huii^es 

Britte n Morman 

Aero Commander 

Pipe r 

Ted smith 

Aero Coimsander' 

Aero Commander 

Aero Sta r 

Aero Commander. 

Aero StarPipe r 

Aero Cammander 

Pipe r 

Beech 

Pipe r 

Pipe r 

Pipe r 

Pipe r 

Pipe r 

M 417. . 

30-1776 

30-1696 

M-1184 

MA-253 

MA-25 

30rll0 3 

661 

670400 

690421 

1000052 

27 

32-40495 

60-0023-41 

3064 

1330 

500B-1187-94 

60>0047 . 

32-40377 

500B-1482 ^ 

32x7140015 

LP-12 

31-282 

3 1 -

31-275 

26-56 

Rgft Ho, 

M-lOlFO 

H-8635T 

H-8535T 

M-6084R 

M-5770V 

M-7998T 

W-6294V 

K-9548F 

M-9634F 

N-4145K 

N-12PB 

H-7745V 

N-9077M 

M-7602V 

H-78336 

N-7496S 

H-4068R 

11-4918 

N-86229 

II-889C 

H-9218T 

H-9211T 

Hr8478P 

Ve would appreciat e your comaenta i n regar d t o th e above Items and 

what actio n you have taken o r inten d t o tak e t o preclud e th e possibilit y 

o f futur e incidents. Copie s o f th e above MfiD Report a have been given 

t o you previously , however, fo r you r convlenc e additiona l copie s ar e 

enclos e 

C. H. SWEENEY 

Chief, Propulsio n Section , EA-214 

Enclosure s 

M 

LYC1779 
\ * 

i 

. • ' DEPARTMENT OF TRANSPi tfATIOM 

FEDERAL AVIATION ADMINISTimTION 

DATt 30OEC1S7V 

% ^ l EA-21U 

SUBJECT: M^tlfUQctlOH o r Defect Reports 

Co/'/-

EASTER N REGIO N 

rcocRAL auttciN C 

JOHN f . KCNNtDY INTCIINATtO^•AL Al 

JAMAICA. HCW VOKK «l«3 0 J 

If ) 

j^rco Ijycooing Division 

Avco Corporation 

Attention: Mr. F. C. Botan 

Chief Qualification Engineer 

WilUaiB^rt, Pennsylvania 17701 

- - - THIS DOCUMENT AND THE iNFOBUATIOM' 

CONTAINED HEREIN IS THE PROF^TV OF 

LYCOMWQ. A TEXTRON COMSS^^AN Y 

?S?Sg?^,?'*'« DJSa.OSLWE .OR USE 

IUfSSHTzEo'" .N^^^i^lJFeY'^a.^ ^ ?o^'''aits.^%>i?^c8liS 

OF THE CONTENTS OF -miS DOraniiF^iT 

I 

£nclosed for your review are copies of sixty-five MalfuncUon or Defect 

Beport8 received from the fleiLd. Included are the following:. 

1 . Seven incidents of Marvel Schebler carburetor throttl e body and howl 

cover-assembly t o carl>uretor isody asseinbly bolts loosening. As pointed 

out In. our meeting o'f l 6 Deceiaber 1971/ this condition Is confined t o 

the 0-320 model when installed on Cessna 172 aircraft.-

^ . Ibere were eleven incidents of magneto difficulties. Included ar e 

-three Incidents of ijnpiilse coiipllng hushing fallinres. Ve would be in -

terested to know i f the failed bushing were manufactufed from stee l or 

sintered iron . 

3 . Four engine mounts (P/N 697OI) cracking. Uie engine mounts were 

installe d on IG0-5'»0-BlA model. Ohe parts wH l be forwardied .to you 

under separate cover. . 

h. Crankshaft failur e on a VO-5'tO model engine Installe d In. a Bfell ^7? -

2A helicopter. (Ihe failur e occtirred a t the Ito. 2 crankpln location. 

5. Tuo MorD's concerned cranlccase bearing dowel failures. Both were 

with the stepped type dowels. One incident occia*ed 20'» hours afte r 

4«becklng and retorquing the ciraokcase througji bolts in compH nnce with 

AD 71-5-2, 

6. Two failure s of the AC oil filte r through bolt. Bie failure s occtirred in the -threaded section pf the bolt. I t is our understanding tha t 

the latest production bolts have Increased wall thickness. Hftrwever, we 

have not seen any dat a notiiyjLng the operators of an iiqproved thru bolt. 

7. Also being sent t o you un<lerseparate cover is. a fuel tube,assentoly 

renoved fixjm TI0-5^0-A2B model engine S/H L-II9O-6I due t o chafing 

caused by loose fit clamp. Bie P/ N 72037 claiq* was installed-i n coapliance with AD Note 71-13-1. You will recall tha t we have discussed 

-this problem before and an imrestigatlon revealed tha t this condition 

was possible due t o the clanp toleranc e and tha t the kits tiupplied i n 

•the future will have claiips tJiat vi U provide a tigh t fit. As yet, no 

RGCOVEOn 

f^^ JAN 3 1972 

LYC1775 
m^lm 

-r 

2 

I 

service instruction or buU.etin has been issued by Incoming t o require 

the operators who have congplied with AD 71-13-1 t o inspec t the fuel line s 

for chafing and tightness. 

8 . Also included are MorD''s coDcemlng cylinder bead cracking, cylinder, 

rin g failures, exhaust valve failures, turbocharger. wheel robbing and 

throttl e arm cracking. 

We would appreciate your comments i n regard t o the above items. A package is being forwarded with a copy of this lette r and wil l include the 

following: • 

Quantity Part - MorD Report 

1 Fuel tube assembly 11301001 

k Engine nounts (P/H697OI) 1209100^-3 

1 AC oi l filte r thru bolt . I213IOI9 

1 AC oi l filte r rubber gasket 12131025 

1 Mixture contro l arm assembly 11261072 

« 1 Vacuum pusip drivegear assenbly 32021002 

JJO^UJUJ It- iKfO^MJtM^I 

(\C . H. SHEENEY 

(^lief, Propulsion Section, EA-21'^ 

Bnclosures 

£% 

y ^ 

LYCI776 
D 

r 

DEPARTMENT OF TRAI ^/ORTATIOM 

FEDERAL AVIATION ADMINISTRATION 

DATt 1.3 Otr: i972 

Ri^TO: AEA-214 

EASTERN REGION 

PCOCRAL BUIU>IHS . 

JOHN F. KCNNEOV tNTCRNATIONAt. AllirOli r 

JAMAICA. Ne w VOAK 11430 

sMxct: Throttle body t o bowl screw loosening - Lycoming Or320 series. engines N^isttj 

Avco Lycoming Division 

Avco Corporation.'^— ^— ^ 

Attention: Hi^^^l , Holland J] > 

Speclliisatloa Engl.neto 

Wllllsmaport, Pennsylvania 17701 

- - - THIS DOCUMENT AND THE INFORMATION 

CONTAINED HEREIN IS THE fflOPeRTTY OF 

LYCOMINa A TEXTRON COMPANY. ANY 

REPRODUCTION. DISCLOSURE OR USE 

THEREOF IS PROHIBITED EXCEPT AS 

AUTHORI^D IN WBrTINQ BY lyCOMlNQ. 

RECIPIENTACCEPTS THE RESPONSIBILITY 

FOR MAINTAININQ THE CONnOENTIALrrY 

OF THE CONTENTS OF THIS DOCUMENT. 

:f ) 

Thla refers to our letter dated 13 August 1971 concernliag Mplfiinction or 

Defects Reports received from the field. Listed In the. letter wer^ 16 

incidents of throttle body to bowl screw loosenings of Harvcl. Schebler 

MA4S7A carburetora ihstalled crn Lycoming modiel 0-320 aeries engines. 

During a meeting at your facility on 20 January 1972, we advlaed that . 

Malfunction or Defect Reports of throttle'body to bowl screw loosenings 

are still being received. Tovi were also Informed that althoiij^ the. 

majority of the incidents repcirted occurred on Lycioming 0-320 E2D engines 

installed in Cessna 172 model aircraft, Ineldenta on Lycoming 0-320 aeries 

engines installed in Piper aircraft were alao included. At that tiae we 

were told these reports will be forwarded to your.Iiiatallation Engineering 

Section for their investigation. 

As a result of the Investigation, this office was.-notifled verbally that. 

In regard to the Cessna installation, it waa dejtermlned that the airbox 

which attachea to the Marvel Schebler carburetor la not sufficiently 

supported and that Ceasna Aircraft and Marvel Schebler were mada aware of 

your findings. However, aa yet there have been.no Instructions issued by 

Cessna, Marvel Schebler or LycOming to correct this problem. PUrther, weare not aware of any action in progreas to correct this problem. 

To date, we have forwarded'to your office 45 Malfunction or-Defect Reports 

on this subject. In the past montii 4 additional reports were received. 

For your convenience, we are enclosing copies of all Malfunction or Defect 

Reports received on throttle body to bowl acrew loosening. 

Please review these reporta anid provide commenta to this office as to any 

action you may propose that will help in alleviating this problem. It is 

suggested that a maximum permlsalble overhang moment for attad|Mwnts to 

the carburetor be laade available to appropriate alroraft- mannfacttiirers. 

Also to preclude the possibility of future incidents, we are considering 

periodic inspections of the throttle body to bowl screws for looseness be 

made mandatory. 

reclate.your prompt reply to the above. 

C. B. SWEENEY 

Chief, Propulaion Section, AEA-214 

Enclosure 

CONFIOENHAL 

SNSJcnj:>:s 

DEC 1 8 15372. 

iLYC1780 
r... 

r >' 

V y i A R V E L - S C H E B L E R PRO D U.C T S D I V I S I O N 

r ^ »OtC.WAlH»l COitOtATJOM btCATUI. IlltNOiS 

' ^ January 19, 1962. 

r . • 

r 

p. 

r . 

rr;) 

r " 

r 

r 

rr 

r 

i 

r 

Continental Motors .Corporation 

20S Mei'ltct Stree t 

>Sj5V:egon, Michigan 

Attontion: Hr. Ray J. Fend , Service Manager 

GcntlcTeni 

Hr. John J. Lj"nes3, Manufacturing I:ispector, Federal Aviation Agency, 

Engineering and K4:rdfact«rlng Distric t Orficc CE-lil, P.O. Box 538, 

IMsicegon, Mchi^an, has. requested tliat ve submit a report on cur 

flndlnss on *>'o IJivestigationa of .-njilAuncticn with Marvel-Schebler 

aircraft carfcuretere, 

Ths ccrbureter p:u^..s and data pertinent t o the investigatioha were: • 

submitted by our Kr. Claud DuBois. 

Our Inveatii^ations of the parts i n question are reported separately and 

are nncloscd. 

Sines this report viss received from Ktr. Du.?ois, we have investigated a 

oorvice ccnplaint tha t may have sorwa bearing on the problem of our 

prlcur>' venturi woriclng loose causing engine operational malfunctiorj. 

Capitol Aviation, Inc. , Springfield, Illinois, reported a rough engine 

cpsrction on a Cessna 175 airplane vit h tota l time of 7U9 hours on the 

onsino. Caa^burciar Model IU-li-5 lO-ld?!. fjZZ^ 'XJ^M<-%. ISL, DL W "V 

E-xanin."vticn of tho engine revealed that tho carbureter fuel bowl was 

loo::e on the throttl e body. However, tho bowi ocrewa with the. safety 

vcohcrs were etil l Intact. The carltrurctcr was taken apart and the 

prlnary venturi viio found to ba Icoao with the venturi retaining clips 

ioisaing. Thero vaa evidence of wea.T on the throttl b body under the 

scretto. 

Tho air box wid the exhaust system of the aircraft were chocked and 

i t vas-rotod tha t there is an exhaust manifold stack brace secured-to 

the rrither long air induction scoop, which is ^tached to tho base of 

tho carburoter I'uol boul. Vie believe tha t this brace ao attached cay 

fca •ir;:ij:forrin'j tarnonic %-lbrations froia tho oxhau.<)t to tho carbureter 

and thereby enuring rapid v:oar throughout the carbiirotcr. 

I 

F ^ 
Continental .Sotoro Corp. - 2 - January 19, 19(52 

I Mr. Kay J. Fancl 

'.7e feol that this condition warrants further investigation, and trust 

thia. infonuition vflll ba cf valur to you on thl« isattor, 

Tours very truly. 

^•^^'M^xrZii!^ 

Donald K. Grahafi 

DKGtj.o Project Engineer 

Attschiunto 

cc: >U)Bsr9, Taul Zberly CMC 

R.J . Powell ". 

Everett Funnel " 

a . T; M.^ssoy M-S 

.- F. W. Hidden " 

i ) ClcUQ DuBcia " 

*^^^- ' . Keith Blytho FAA 

( ) 

y^ 
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f \ 

7 APR 1372 

y:-3l 4 

LooBcr.ing o£ bcwl sctec b fcreva on I^A4«5 carburvtors 

Mr. a . 11. Littl e , 

Marvel-Scheble r Products Division 

Bcr.^-Uurncr Corpor/icion 

2195 Couth Eljiln Rood 

17«cetur, Illlool a 62525 

Wo hivo received a report ,oi the subjec t coodltlon vhlch progreased t o 

t h e pulnC of fucil Icukage « t th e piurtlr.g-line . A copy o t tho report , 

our iiimwc-r 01162010, Is cncloeud for yowf loformaclon. We believ e the 

outhc r of the v-pcxc ham inlstclxnly assuaeU ch« coadlelon won due cb 

t h e P/tt 7fl-A97 cub i.r.zlir-ra. Ve btilleve the problem Is ^u e c6 ca t In . 

t h e bswl cc botiy :;r.t;i!dt which rcliove s Ch« ccr(;u« on Che acrews and 

Iioi'r.ice tJ>o bc-ul Co tecvs reUclv o t o the boriy due to-engin e vibratlba . 

\*hls cnucei the w.-ishcrs t o veor Int o .the body, thus furthe r loosening 

Che acrcv*. rnd cccelcratln a thl a process. 

Kc dci:b£ C>inC Che fuel Ic^kec* viould creat e a sexloua fir e hat^rd . 

U<r.>evcr, th e carbureto r calibratio n and engine operation could b« 

odv.^rscly cisactcii . 

.'cccrtilrniy . ve would vpfreclot a your rovlcwlna the sultcblltt y of 

lists r.r.aKct ir.r the vcvircirisent this .corburfctor Is experiencin g end 

r.dvisltvj ua uf =pp;oprlet o corrcctlv n actio n t o ellclnat e or reduc e 

thl a problem. 

OrJclMl Sljrr.od l-y 

C. I . TELLS 

jo-.ai A. CfJlX.W 

Chief, Kngtr.corlna C% K!vnufectur:lng Crench 

Kr.cloaux'o 

CE-2:i:OLFaRc:Jaf:.x3836:4y7/72 

c c : cn-218 

Cf-K;iD0"i2 

R. n. Syaoii, TC?I 

DER Noor e 

IcoNcmagwcB 

MCiirwot -

MnMS/Stt . 

OATI 

incsYAuct 

^ > <&. 

nCSYMSO t 

NTIAtS/SHfc 

M I S 

OAIC 

n8.StMB<X 

lumm/soi 

iMIUiS/SC . 

OAIC 

ncsyMSoC 

OAie 

(TCS^MM t 

»«UU/£IG. 

DiM I 

CIGw&YMMX 

t<«nAlS/SM3. 

OAIC 

. .A Fern* 1360-14 »-« Oi=PiClAl FILE COP Y 

'{C-J 
o 

'3 

o 

] PAM00145 \3>5 
.( ) 

C ) 

PRECISION AIRMOTIVE CORPORATION 

14800 40TH AVE. HE 

MARySVILLB, WA 9827 1 

FAA REPAIR STATION NO P32R748N 

360-651-828 2 

WORK ORDER NUMBER - SRHA6122 

WORK ORDER DATE - 01/28/0 2 

QTY PART NUMBER 

1 10-5267~F 

WORK ORDER COMMENTS 

MATERIAL IDENTIFICATION 

DESCRIPTION 

CA3RB ASSY MA-3PA 

SERIAL NUMBER 

75090304 

: w . 

SEE ATTACHED 

<iP ^ 

WORK PERFORMED MHRS. DATE HECH. INSP . 

Z-;2.-<y ^ 

THE CDWPGNEMT IDENTIFIED HEREON WAS OVERHA!II<EO/R£]^IR£D AND 

INSPECTED INSCeo^DANCE WITH CURRENTJUBGtJiATIOM OF THE 

FEDERAL AVIATION A&SNCYAND I S AgPRCSVED FOR RETURN TO 

SERVICE. PERTINENT DETXT3^,„AR£rON FIL E AT THIS AGENCY UNDER 

SIGNED DATE 

PAM 00146 
n 

PRECISION AIRMOTIVE CORPORATION 

14800 40TH AVE- NE 

MARYSVILLE, WA 98271 

FAA REPAIR STATION NO P32R748N 

360-651-8282 

WORK OliDER NUMBER - SRMA6122 

WORK ORDER DATE - 01/28/02 

o 

QTY PART NUMBER 

1 10-5267~F 

WORK ORDER COMMENTS 

— MATERIAL IDENTIFICATION 

DESCRIPTION 

CARS ASSY MA-3PA 

SEIUAL NUMBER 

75090304 

. * ' • 

SEE ATTACHED 

WORK PERFORMED '-,_ J MHRS. DATE MECH. INSP. 

THE COMPONENT IDENTIFIED HEREON WAS OVERHAULED/REPAIRED AND 

INSPECTED IN ACCORDANCE WITH CUR]?ENT REGULATION OF THE 

FEDERAL AVIATION AGENCY AND IS APPROVED FOR RETURN TO 

SERVICE. PERTINENT DETAILS ARE.ON FILE AT THIS AGENCY UNDER 

SIGUED THIS WORK ORDER. DATE 

: ( ' • ) 

PAM 00147 

•\3' ^ 
r RMA.REPORT 

" ^ NBR: 612 2 

UST: 99999 8 

PRINT ENTERED ]RMA'S 

DATE: 01-17-02 TYPE: WTY 

NEW CUSTOMERS, PRE-PAY IN ADVANCE 

01-24-0 2 

AUTH: KS, PN 

PAGE 2 

REASONS: 10-5267—F , 75090304 , 4/29/99 , 51583 7 

TSN : 374 , LOOSE BOWL SCREWS. PER PETE N 

SHI P REPLACEMENT N/C n^EIGHT UPS RED AOG 

DO NOT OPEN WO 

INSTRUCTIONS: RECEIVE , INSPECT, ROU!IPE TO PETE. DON'T OPEN WO 

SHI P REPLACEMENT —H UPS RED N/C TO: 

AIRCRAFT MNF & DEVELOPEMENT, ATTN: TODD OTT 

4 1 5 AIRPORT RD, EASTM/kN, GA 31023 , 478-374-275 9 

REFUND $50 0 UPON FINDINGS 

ITM PART 

1 10-5267—F 

DESCRIPTION 

CARB ASSY MA-3PA 

QTY SERIAL.NBR'S 

1 

REC.QTY REC.DATE 

( ) 

L) PAM0014S 

\ 3 ^ 
n 

RETURN MATERIAL 

AUTHORIZATION 

RMA NUMBER 

Ji Ctuomtr 

VIA C^ht'T tiJJF 

Ctaumtr Fori Humber 

o 

PACPm1>lmmh*r 

lo-^ui-F 

Stn'aH/nmbtr WA 

•Customer Complaint: 

- ^ y^09^3 ^ 

PoiiDterlplttm 

C/HIS 

Ctuiont RtftafCH Doeumml Number 

m [3 

[rooser hnuj L ^c^GHiSPtenousiy retimteJ on RMA U (s) WA D 

2.C. Reeeivmg In^teclion /Condition as Recoved: 

(- oo^ ^ ^'^-^nujit ^ci^u> ^ 

• PartsMssing P/N 

Stcwity Wrt Broken / Torque Seal L J YES j ^ NO 

V Wanawly Cotai6enH
f/ Custoiper Request for Wodc 

(CireteOoe) 

b. If Unit ha s been retttrned previously, complete the foUoning: 

Review RMA history for this unit ±JJJ^^ Complele ^^C . Inspector f^ jfii. ft ? ^* * 

Disposition of unit: 

JfBER, 

ChiefInsp.Initiab Dale 

RouUto: n Flo* Room jKl Produclion {^ Engineering Q ProrfKcrSwflport f"! Of/ier_ 

RAR: D rEs M. 

NO D N/A Inspector: Dale 

X PACFindings: 

Sc\r^,^ ) t-k>/i^ . 

V).JS5v?>^ f.^^. ^ S Qej.6> .^^ A - ^ T>^<( ? ^iJr-^ ^ ) 

(Ftrjon TuKng or Rtpairint Unit) Initials: 

Repair Performed: 

/Ocmj^a " f^. ^^.^.>: > ^oW s '^^ ,^ A^o^ \ ^ ^ ^<^t > € 

f\P^^DZ- ^ ^tck-4ikf UroV^^/l^.f 

0>»rtonfttlfnterHtpoklnttJnt0 Initials: 

C^myiclcFaSMrlMf irUidllHMbc*BR<BrMcilferW»inal7Cmrt<l(»liMOiilr -

Insp. Initials: Wf 

Correcd*e Ae6«n: (AMrtmnt A* Rool COMM d*Urmin*d atcvK) 

fp-Z'y^ ^ hH- -ri ^ ^ *w«. 

I Customer Discrepancy Verified: 0M ^ C j M 7 • N/A Insp. Initials: -WfT 

Quality DataEntry, TTN/A 

7»/tf^br vi P jDa,e^,^Xi?k 

GEN11I0RO70I 

Responsibility: 

D Customer 8 J PAC Responsibility Warranty; ^ Yes ^ No S 3 N/A 

PAM 00149 
/ " ^ 

CIOSED.VO.'SUMNWT - aOSED UQRK OtOER SUMNMIY - U:32:33 13 Feb 2002 

PMT tun a 10-5267--f UO.HM SRIW61i22 OPtn UORK OROEK RETORT ONLY 

DESCRIPTIOM CARS ASSY HA-3PA 

SERIAL HUKERS : TSOVOQM 

SM.ES ORDER REFERENCED : 

ACCESSORY PARTS 

PART NU«ER 

PARTS YIELDED 

PART MMBER 

OUAMTITT SERIAL NUffiERS 

DESCRIPTION POSTEh bUANTITT VALUE EACN 

LABOR M S 

LABOR DUS 

MAHklAL DIRS 

OUTPIAMT DIRS 

OVERHEAD DUS 

TOTAL DIRS 

LAST COST 

CAT. m a 

ACCTC. VALUE 

foli^ 

• ACTUAL 

TOTAL 

0.16 

3;.V2 

0.00 

0.00 

11.04 

EACa 

0.00 

0.00 

0.00 

0.00 

0.00 

0.00 

STANDARD 

EACH 

0.00 

0.00 

0.00. 

0.00 

O.DO 

O.OO 

-•/VARIANCE -

EACH 

0.00 

0.00 

o.bo 

0.00 

0.00 

0.00 

PERCENT 

6.00 X 

d.oo X 

o.bo X 

0.00 X 

0.00 x 

0.00 X 

CURRENT AUV 

TOTAL ACTUAL 

UIP CLEARING 

VARIANCE 

SCRAP DOLLARS 

366.«76 

U.96 

0.00 

Uw96 

O.IW 

-366.670 

1357.000 

366.676 i2o.s^-M3-ioaD 

( ^ 

VO COWCKTS: SEE ATTACHED 

SET-UP HOURS SET-UP AHCUHT 0.0 0 

REHARKSCl>>JTEN NOT CM BILL OF MATERIAL SHOULD BE 

RtNARKS(2)'VbRIC ORDER CHANGE 

RtHARKS(3):«0RK ORDER CANCELLATION 

REIMRKS(4)^TY INDICATED INSUFFICIENT 

REHARKSO'SPECIAL ONE TINE USE 

RENARICS(6)=REASat ONE REVIEUED. fl MATERIAL 

PART NUMBER DESCRIPTION OTY REOD OTY ISSUED UST ISSUE REMARKS AUV EXT AUV SELL EXT SELL 

( I PAM OOISO 

\HO 
CIOSED.UO.SUHNART - CLOSED UORK ORDER SUMMARY - 14:32:33 13 Feb 2002 .. . 

PART «»«£ » 10-5267--r tn.NBR SRNA61£! OPEN UORK ORDER REPORT ONLY 

f ~ \ DESCRIPTION CARB ASSY HA-3PA 

SERIAL NUMBERS : 75090304 

SALES ORDER REFERENCED : 

TOTAL FOR GROUP : FIR O.OdO . O.OOQ 

»0;0ob . SO.OOO 

LABOR 

EMP.NBR NAME OPERATION DATE HOURS ON/TYPE ON/MIS 

93070 UENTLAin HICHAL - MS 02/12/0 2 0.16 5 0.16 

TOTAL 0.16 .0.16 

OUTPLANT 

P0.N8R ITEM DESCRIPTION VENDOR NAME RCD DATE QVI IMIT VALUE CLEARIHO AKT 

C) 

PAM0015i 

A\ 
•o 

'^tmBcmmMf 

14800 40TH Av«. M.E. \ M»rV»v««. WA 98271 \ USA 

TEL: 360-SS1-828I \ FA;<: 36O-65I-BO80 

CREDIT MEMO 

. A MONIM-Y CHAIKSE MAY at AFrUe> 

aNTt«rMVKXIS«ALANCEUSS ' 

OdXTS ON THC num S OATf AT TMC 

MAXMUM AUJOWAMt UGAl RATC 

INVOICE MO. 

ia7«. 

IWV0IC6 DATE 

02-15-02 

B 

I 

L 

L 

T. 

O 

NEW CUSTOMERS. PRE-PAY IN ADVANCE 

ADVANCE PAYMENT S 

H 

I 

P 

T 

O 

V C MFG. % OEVELOPHEHT 

ATTN: TOOO OTT 

415 AIRPORT ROMD 

EASTMAN. GA 31023 

(" 

OHOERNO. 

CNI2442 

g|g^P 

-1 

) 

OROEM DATE 

02-15-02 

^ m 

-1 

P^PP 

0 

CUSTOMER NO. 

999996 

IOC. 

^^^^^^^^ ^ 

SLSMN. 

•** CREDIT MEMO *** 

PUROVkSE OnOER NO. 

6122 

1/10-5267 

0/H, MA-3PA . 

PAC DSff INVir DATED 

RMA6122 130917 01-18-02 

CREDIT FOR MATERIAL RETURNED 

STOCKED AS A CORE 

SN 

BY17t596 

JNDER IMRRANTY 

500.000 

DATESHVPPEP 

EA 

COMMENTS 

PAVMCNT T ERMS 

NET SO 

SHHTEOVIA 

^^^^^IM 

-500.00 

H ^ ^ 

0 

wSm. 

C0UJECT4VD 

-soo.oo 

SUB-TOTAL -500.00 

MISC. CHARGES 

FRBGHT CHARGES 0.00 

STATE SALES TAX 0.00 

WVOICE TOTAL -500.00 

o PAM 00132 
AIRMOTIVE CORPORATION 

o CREDIT FORM 

RMA#JJ2]LQ3L 

nATP <Q-^VS-Q3 > REQUESTED BY ii£z 

CUSTOMER * OpPOa^ CUSTOMER A/bYTnfVr'4o-Q)l1Q0^fY?flnr^-

CUSTOMER PO# j f 0\r(r \ 

REASON FOR CREDIT 

OVER SHIP MS* 

SHORT SHIP'S* 

DUPtlCATE SHIPMENT •14* 

PRICE / DISCOUNT ERROR 'A' 

FREIGHT DISPUTE ' T 

ORDER CANCEUED / RESTOCKED ' W 

ORDER / DELIVERY REFUSED 'XT 

BILLING / ORDER ENTRY ERROR'IS* 

WRONG P/VRT NUMBER RECEIVED M6» 

SHIPPED TO WRONG ADDRESS / CUSTOMER 'I? * 

CUSTOMER ORDERED WRONG P/kRT NUMBER *18' 

CUSTC^MER RETURNED EXCESS INVENTORY 

MATERIAL RETURNED UNDER WARRANTY'10* 

*2*/*1 * SO/OS # £jnnAMaa_^'Nv* i^scQjIL DATEjliElOa. 

•3* RETURNED ON CUSTOMER REF / PACKSUP 

r") PN iQi^acp-n-^ SN l^toLSQLf i QTY J _ EA PRICE NET* .^^i ^ .^ Q 

(IF MULTIPLE PART NUMBERS ARE BEING RETURNED ATTACH ISSUE / CREDIT SLIP) 

NCORE NCR 

CORE 

DELETED EACH PRICE NET $ 

GLCODE 

TAX$ 

.1000 PROD CODE 

FREIGHT J 

AUTHORIZED BY 

COMMENTS 

TOTAL CREDIT $ ,fSCOrOC ^ 

DATE 

OMf 0MR/SIR« 

DATE INITIALS VERIFY AND PROCESS AS FOLLOWS 

^ 1^- 0 9 l dM ^ ISSUE #2 / RESTOCK P / N "Ti - ^^PlL^ H - ~ O •IL. QTY 

(IF MULTIPLE PART NUMBERS ARE BEING RETURNED ATTACH ISSUE I CREDIT SUP) 

(STOCK IN IBM AT CURRENT COST / AUV) 

ISSUE TO WO AT CURRENT COST / AUV RMA# (NO SUP R€Q) 

r)->v^/V ^ ^J>* ^ CREDIT.SALES PROCESSES THE CREDIT TO BE GIVEN CMf \f^'MM<3 > 

^ ) CEN9004RP900 PAM 00153 

\^^ J 
fO 

-^ AIRMOTIVE CORPORATION -

B AN CONTROL - CREDIT CARD DEPOSIT -

(\o.^ 

t>ATE : li^ 

^ iS-^CQf'^'''^^^^^^"^*''^ 

zyg ^ NUMBER OF PAGES INCLUDING COVER: a 

TO COMPANY: FFP<"^-^^"N AVIATION PRODUCTS CORPORATION-ACCOtlNTING 

ATTFMTinN- nrDY JOHNSON -425-313-6781 \ •. FAX#: 425-355^8412 ; 

FR0M:_KJ^ ^ ^SALES: PREOSION AIRMOTIVF. 

PRECISION 

CUSTOMER #CK/SO#_RMAJfil^3=-

GUSTOMER# <^^^^9 r 

NAME ToJlfA o{A- PHONE# ^'^• T . 

COMPANY NAME hlvC^oM r \^^ ^ \ Oev^e,UAX# • • 

STREET ADDRESS ^/5 ~ Ai T p p P-j- ji-X 

CITY ^fvJ ^ ^VL<v^^ STATE Gfl ZIP CODE ?^ / 0^ ^ 

VISA X MASTERCARD OTHER_ 

CREDIT CARD* 

SALE AMOUNT S - SOO ^ 0<^ _+FREIGHT $_ - ^ 

(SPECaTYNAME) 

EXP;^ 

(MM/YY)-

+ TAX S ^ 

TOTAL SALE: S - 'nO O ' O O QXOJXsS^ us p 

APPROVAL: 

CAPTURE* _REF# 

MATCH: EXACT. _ZIP_ .ADDRESS UNABLE TO VERIFY 

DECLINED COMMENTS: 

PROCESSED BY: __: _DATE 

POSTED TO: UNAPPLIED CASH. 

RELEASED BY: ' 

INV# 

DATE 

k \ 

CREDIT CARD PREaSION AIRMOTIVE 01/11/2002 

PAM 00154 

\K' 
n^ 

AIRMOTIVE CORPORATION 

14«00 40TM AVe. NE \ MABYSVHAE, WA M271 \ USA 

TEU 360-«S1-«2»2 \ FAX: 36MS1-a080 

. « NEW CUSTOMERS. PRE-PAY IN ADVANCE 

L ADVANCE PAYMENT 

" I 

T 

O 

S V C «F«. < OtVElOPMENT 

I ATTN: TODD OTT 

P 415 AIRPORT ROAD 

T EASTMAN. CA 31023 

O 

y 

PACKSLIP i-\t^ 

PACKSLIP NOR : 161485 

DATE.IS«1ED : 01-17-02 

REC'O.DATE t 01-t7-02 

TIME : 02:52PM 

PAGE NBR : T 

P03TEQ B 4 

,i AN 18 2002 

SPEC PLA MIN6 

TNI : 

U Il 

PAI i 

REPUC :MENT IS A 

BE CREDITED 

VIA CREDIT 

tHitomcl iiKiDtirTinMd 

FOR ON: 

AFTER UNIT 

•MSt 1500.00 

COHINC IN ON THIS Kt \ . TNIJ 

IAS. BEEN RECEIVED AND ^VALUA(E0 

1-17-02 LR 

10-5267--N O/H, HA-3PA 

MWiTinii M irimiiitiKii T • I« T 

UPS RED N/C FRT. 

MUST SNIP 1-17-02 

SHIPPING INFO 

N0.PK6S 

TOTAL UCT 

PACKED BY 

SHIP VIA 

UAYBILl 

HISC 

972iee JRN 17. 2M 2 ACT 4.5 

SERVICE IDA BILL 5 

TRACKINGN 12972iee014317634e 

PURCmSE NO.: RnA6122 

REF 2; TW 

PUB SVC CHC $36.50 HPK 1 

IV $e.ee coo $e.oo 

DC $0.00 RS $0.00 

RH $0.00 SD $0.00 

HNOL $0.00 SP $0.00 

NTFY $0.00 HZnr $0.00 

PUB/NEt CHG $36.50 $36.50 

FORM 8130 

PAM 00155 

(7 TE:- CORES SUBJECT TO PBECISIOWS RETURN POUCV. AOOmONAL BILLWIG MAT BE APPLIED. ALL CORES MUST BE RETURNED ASAP. 

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\ 

PAM 00156 

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f) 

^ : 

/ / 

PAM 00157 

\ ^-1 

; 
AIRMOTIVE CORPOBATIOM RMA# 6 /f?-^ 

rT), 

REQUE:STF0R1?MA# 

(RETURNED MATERIAL AUTHORIZATION NUMBER) '•^ 

OUT Dolicy is to Pre-Authorize vrtth an RMA # lor returned hems. Please cptnptele and fax this form to (360) 651-8080 for 

RMAoxTsideration. Our poNcy is to Repair and Relum the unM. A Customer Service Representative will contact you after 

the detemiination is reached. 

Requested 6y i 

Company Name 

Date Requested, 

L 

^—7 

Branch (if appficable) 

0 ^ 

Contact Information (Phone. Fax, E-maiJ) 

Your Customei^s Name tii appticatite) 

PtWU^ 

I 

Part* 

{0 "S^^" ^ - ' F 

Unit ofjginally purchased from? 

Warranty Constderaiion? Yes K No D 

F/!H( ^>r-i7 ^ -j^?o s 

Customer Contact Infonnation (P.hon6 / Fax /Email) 

Serial Numtier ic# 

SERIAL NUMBER & IC # LOCATED ON DATA PLATE 

Purchase date 

Time On Unit 

5r/^?J ^ 

iigust0mei!:)9torl^Seques«<-

Reason lor return 

ho vOl S<;r€<-o ^ ^OG. Per- P-t't-f. 

If ttiis is a wirrant irrantyy request requel , has the If yes. PO# ' 

customer received a replacement? 

Y a N D 

AzL EE 

DS aiid/or Invoice U^ 

Has this unit been to a Warranty Repair Station? Y D N Q ' 

If yes, which one and when? 

If the unit is to be returned or replaced please provide the following information. Our policy is to ship the unit UPS Ground 

at no charge, if requesting expedited stripping, it is at the customer's own expense: 

Company Name Attn: 

Tog^gt or r 

Addres Jress s ^ / ^ 

City 

Telephone 

State 

f^ax 

^ J L 

ZIP 

E-mail 

?> (Oj^ O 

For Internal Use Only: (use back for aadHion comments if necessary) 

Return Approved? Y ^ N • If yes, vffite RMA » above. If no. reason: 

Current IC # Update lo Current IC 

Yes I I No {_) 

Cost Quoted lo Customer to Update and/or Woric Requested by Customer 

Please drain the returttedMem of fuel arid mark the box (^ntainmg the returned Hem with the RMA t to expedite receivingi 

If the unit is not within the parameters of our Commercial Warranty, the unit will be returned and the customer 

y _f^, i \ J . billed for charges. 

KnLX^AttwOv>A>t^yiA> PAC Customer Sales Representative, at (360) 651-8282 or E-nraB 

4<^ ^.-HAI I 4> P.i ^ 5v (apDreclslonairmotive.cbm for any information regardingiWsunit. 

Please contact. 

L 

14800 40" Avenue N.E. • Marysville. WA. 98271 • USA • Phone: (360) 551-8282 • Fax: (360) 651-8080 

GeNS762R090, PAM 0015* 

\ ^ % 
BMA# Lf. f <9-f^ RMA Customer Contact 

ri Part# /0^^'L^l-~ f Serial # 750"; Q3a^ 

Date A/7-c97 - Contact by Who i ^ 

Company Name /H<V.r/- ^ ^ /^ . ¥J2.^JM^ ^ of Person Contacted Tc^cfq: nffWH l 

C) 

I oo^<- AcfUy l ^iCy^i^* ^ 

A O ^ J rrA^ p CL^fctct^fA <yJv 

'f7{^-^iH--2:7$n 

-^77 3 

rc\f4y* ^ f/A^Hy fg? £^^)<vy.4ry-7'A/r/^ Vodbs J 

r^ / / \^;^ r^e.f^^d acr ^ 

12 

73 

Promised Shipping Date 

Ship VIA 

Additional (Charge Quoted 

GEN 1111 RWOt 

NA 

NA 

N A 

( ) 

3?^ . 

RMi j (=<>ft cy 

PAM 00159 

\ ^ ^ 

J 

J 
r 

r-, 

r. 

r, 

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r 

(J 

jLLp ^ AIRMOTIVE CORPORATION 

BAJNf CONTROL - CREDIT CARD DEPOSIT 

DATE: J1J>(^9~ ~ 

PAX COVER SHEET 

^IsTJMBER OF PAGES INCLUDING COVER:. 

TOCOMPAIIY: PRECISION AVUTION PRODUCTS CORPORATION- ACCQUNtlNG 

ATTFNTnrtW- JUDY JOHNSON -425-513-6781 • F/bcfe 425-355-8412 

PRECISION • 

OJSTGMJLRUCKJSO# ilM d (af^XoL 

/ SALES: PREaSlQN AIRMOTIVE 

CUSTOlVfflRtf ^^^1^ ^ 

NAME TO(A A Of4 -

COMPANY NAME At'rrro^ f VHwi^ 4 Oe\;e-lFAX#. 

5;TRF.F.T ADDRESS ^/5 " /V.T poC-j- A A 

PHONE# ^"^- r 

VISA X MASTERCARD, 

STATE C ft ZIP CODE ."^ < ^c?-3 

OTHER • . 

CREDIT CARD#. 

SALE AMOUNT S .^^JQ^ 0<!> 

TOTiVLSALE: S ^TPO' ^ O O 

_+FREIGHT $_ - ^ 

(SPECIFY NAME) 

EXPL 

(MMnno 

+ TAX S ^ 

USD 

APPROVAL: ^ ,_,/ ^ _ ^ , • 

MATCH: EXACT. ^^1 ^ 

REjy rynjF-^ 

.ADDRESS. _UNABLE TO VERIFY. 

DECLINED COlwlMENTS:. 

PROCESSED BB>C 1 ^ •II DATE / -

POSIEOTO: UNAPPLIED CASH. 

RELEASED BY: ________ _ 

LzlSl ^ 

_INV#_ 

TtATE. 

CREDrr CARD PREaSlON AIRMOTIVE 01/11/2002 

PAM 00160 

TOTAL P.01 

\6o 
o 

n 

TO 

i 

T 

u 

PAM00I61 
r. 

rr " 

! • 

r,; 

r 

AIRMOTIVE CORPORATION 

BAN CONTROL - CREDIT CARD DEPOSIT 

(Lwv i33t x ,, .'?:!>y.:.l^?M:....\ 

r 

r 

r. 

r 

r 

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r 

r 

( ) 

- ( ) 

DATE:^ ^ 3 -

PAX COVER SHEET 

—LNUMBE R OF PAGES INCLUDiKQ COVER: xT^ ^ 

TO COMPANY: PRECISION AVIATION PRODUCTS CORPORATION - ACCOUNTING 

ATTENTION: JUDY JOHNSON -425-513-6781 FAX«: 42!5-3«-8412 

FROM: C-Awyr^;:- - .; jSALES: PRECISIQN AIRMOTIVE 

PRECISION fv . jLc/r^„ 

CUSTOMERitCK/SO» K7V\A- PY7.3 > CUSTOMERtf^^^f^iyF" 

NAME T/uJ<cvx ^ J ^ P e U<u r PHONEfy ^T f - V3/ - V<yyd 

COMPAm'KAME 5oOCeS5 . Ax/i*^ ! t>K FAX» 

STREHTADDREss I ii' \ \ ujes>fU e 1 «^e r # 7?-^ 

CITY //d0 2.-f-dVN STATE T X ZIPCODE^T iQ<-f X 

VISA. OTHER 

CREDIT CARD* 

JS^dEa?AMOUNT S<i SQ O . O O 

(SPECIFY NAM ^ 

EXP: 

APPROVAL: 

CAPTURE# 

TOTALSAfcK AfcK; : i^^V d rOC^ 

_+TAX I_ 

-USD 

_REFr 

MATCH: EXACT. -ZIP. ADDRESS. .UNABLE TO VERIFY. 

DECLINED COMMENTS 

PROCESSED BY: 

POSTED TO: UNAPP] 

RELEASED BY: 

CREDIT CAPX) PRJECISIOK AmMOTTVR 

i^;;^Rg ^ 

DATE. % . 

PAM 0ai62 

mmrtnm TOTfiL P.02 

AVA 
n 

PRECISION AlRMOtlVE CORPORATION 

1480 0 40TH AVE. NE 

MARYSVILLE, WA 98271 

FAA REPAIR STATION NO P32R748N 

360^651-8282 

HORK ORDER NUMBER 

nORK ORDER' DATE 

SRMA6493 

08/27/02 

QTY PART NUMBER 

1 10-5267—-F 

--- MATERIAL IDENTIFICATION 

DBSCRIPTICW 

CARB ASSY MA-3PA . 

SERIAL NIMBER 

75051222 

WORK ORDER COMMENTS , 

SEE ATTACHED 

( ' ) 

POSTED B 4 

SEP vitm 

WORK PERFORMED MHRS. DATE MECH. INSP. 

( ] 

THE C0MPC»4ENt IDERTiCl^D HEREON WAS OVERHAULED/REPAIRED ANg, 

INSPECTCD IN ACCORDANCET»I«HJCORRENT REGOLATI««_OJ 

FEDERAL AVIATION AGENCY AND l5""7lPE50WED,J»R--ia:^Jroi TO 

SERVICE. . PERTINENT DETAILS AB&-e!ri?I^-iAT THIS AGENCY UNDER 

SIGNED THIS WORK ORDER. DATE 

PAM 00163 

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rr 

r 

PRECISION AIRMOTIVE CORPORATION 

1480 0 40TH AVE. NE 

MARYSVILLE, WA 9827 1 

FAA REPAIR STATION NO P32R748N 

360-651-828 2 

WORK ORDER NWffiER - SRMA6493 

WORK ORDER DATE -r 08/27/0 2 

QTY PART NUMBER 

1 10-5267~ F 

WORK ORDER COt*>lENTiS 

--. - MATERIAL IDENTIFICATION 

DESCRIPTION 

CARB ASSY MA-3PA 

SERIAL NUMBER 

75051222 

'••.; . -. . 

SEE ATTACHED 

r 

r 

rn 

r 

WORK PERFORMED MHRSw DATE MECH. INSP. 

r 

r 

r 

r 

f 

THE COMPONENT IDENTIF'IEO HEREON WAS OVERHAULED/REPAIRED AND 

INSPECTED IN ACCORDANCE WITH CUJWENT REGULATION O F THE 

FEDERAL AVIATION AGENCY AND I S APPROVED FOR RETURN TO 

SERVICE. PERTINENT DETAILS ARE ON FIL E AT THI S AGENCY UNDER 

SIGNED THIS WORK ORDER. DATE 

PAM 00164 

\\Vs 
o 

RMA.REPORT PRINT ENTERED RMA'S 08-27-02 PAGE 1 

RMA NBR: 6493 DATE: 06-20-02 TYPE: WTY AUTH: KS/PN . 

COST: 999998 NEW CUSTOMERS, PRE-PAY IN ADVANCE 

REASONS: 10-5267—F, 75051222, 11-22-95, 512322 TSN: 1400 

BOWL SCREWS CAME LOOSE SEVERAL TIMES-WARRANTY 

EXPIRED, BUT WE WILL REPLACE WITH — M UNIT. 

iNSTRUCTlCaiS: RECEIVE, INSPECT t VERIFY CLAIM. BASED ON 

FINDINGS, CREDIT $500.00 DEPOSIT FOR REPLACEMENT 

UNIT. SHIP REPLACEMENT UPS GROUND N/C FREIGHT: 

SHIP REPLACEMENT: SUCCESS AVIATICW, ATTN:TOM PEKAR 

11191 WESTHEIMER 1874, HOUSTON, TX 77042 

ITM PART DESCRIPTION QTY SERIAL.NBR'S REC.QTY REC.DATE 

.1 10-5267—F CARB ASSY MA-3PA 1 

'f) 

(^ ) PAM00165 

\n 
fO 

n 

AIRMOTIVE CORPORATION. 

14800 40TH Av«. NE\''M«Y*vae. WA 983711 USA 

TEL:3fia6St.82a2 \ FAX:3eO«5l-«0ep 

A MOMIMLY CHMIGt MAY M ftfru m 

ON THE ncVOOS lAt^NciusS • 

CKOnSOHTMCBUMGOATf AT 1|« -

MAMMUM AUOHVAKC UGA L DATC 

B 

t 

t 

T 

O 

OnOEMNO. 

IHAM93 

INVOICE NO. 

luan 

IWVOtCI DATE 

06-25-02 

NEW ajSTCHEKS ajsT; . PttC-FAT IN MVANCE 

AOVAfiOE PAYMENT 

m c vf, 

7 

08260 23 0 1 

SUCGESS AVI At tot 

*' ATTN:.TON PEKAR 

T 1119V MESIHEiHER 

HOUSTON, li. 77042 

PackcUp: 1«512S 

OnOEKOATE 

06-^-l|2 

CUSTOMED NO. 

999998 

LOC SLSMN. PURCHASE ORDER NO. 

4493. 

IJTT 

^^y^'y • ,*m ^ 

Ol/NUORK 

10-5267-f 

PN: 10-5267--r. CARS ASST. Wf-3PA 

S»i 75051222 

eerufta PAID VISA ssoo.op eg 

2/10-5267 

REBUILD, NA-3PA 

THIS IS A REPLACEMENT FOR ON^ 

CREDIT VILI BE ISSUED AFTER LtttT HAS BEEN EVALUATED 

M 

S^RIAt NUMBER 

DT3t029' 

? 

DATE SHIPPED. 

06-25-02 

vn*. 

BEING SENT IN ON 

500.000 

MIS »KA. 

EA 

"****PAi 0 W/CTEDIT CAW) DO NOT PAT FftOH THIS INVOICE 

BEMTT TO: 

P.O.BOX 8470X SEATTLE. WA 98124-6073 

ra:42S-S13-lB781 FAX: 42S-3S5.84T2 

SiHUTEO VIA 

UPS CRND 

V EXTENOEOraCE500.00 

^?|jfefe'|a#;^:wNeTPwcE 

PAYMT T 

CA 

SUB-TOTAL 

MISC. CHARGES 

FREIGHT qiARGES 

STATE SALES TAX 

WVOICE TOTAL 

500.0 0 

500.00 . 

O.OC 

O.OO 

500.00 

u PAM 00166 

\ V \ 
ttOStPiVO.SUMHARt - CLOSED UORK ORDER SUWWT - 10;39iS2 05 Sep 2002 

n 

PART NUMBER 10-5267--F 

DESCRIPTION CARB ASSY HA-3Pft 

SERIAL NUMBERS : 75051222 

SALES ORDER REFERENCED : 

UO.NBR SftMA6493 OPEN UORK ORDER REPORT ONLY 

ACCESSORY PARTS 

PART NUMBER 

PARTS VIEIOED 

PART NUMBER 

OUANTITT SERIAL NUMBERS 

DESOIPTIQN 

LABOR NftS 

LAMR DUS 

MATERIAL DLRS 

OUTPLANT DLRS 

OVERHEAD DLRS 

TOTAl, DLRS 

LAST COST 

tAT. PRICE 

ACCTC. VALUE 

US.IOB 

1357.000 

439.939 

ACTUAL 

TOTAL 

O.OO 

0.00. 

0.00 

0.00 

0.00 

0.00 

OMMTITT 

EACH 

0.00 

0.00 

0.00 

0.00 

0.00 

0.00 

VALUE EACH 

STANDARD -

EACN 

0.00 

0.00 

0.00 

0.00 

0.00 

0.00 

m 

TOTAL VALUE 

. 0.000 

" VARIANCE ~ 

fACH 

0.00 

0.00 

.0.00 

4.00 

0.00 

0.00 

PERCENT 

0.00 X 

o.oax 

0.00 X 

0.00 X 

0.00 X 

0.00 X 

CURRENT AUV 

TOTAL ACTUAL 

WIP aEARING 

VARIANCE 

SCRAP DOLLARS 

439.939 

0.00 

0.00 

0.00 

0.00 

f) UO COMMENTS: SEE ATTACHED 

SET-W HOURS . SET-UP AMOUNT 0.0 0 

REHARKSdJslTEM NOT ON BILL OF HATUIAL SHOULD BE 

REHfUIKS(2><4X»X ORDER CHANSE 

RENARKS<3}>UQRK ORDER CANCEIUTION 

RBWRKS(4)>0TT INDICATED INSUFFICIENT 

RENARiCS^5}BSP£CIAL ONE TIME USE 

REMARKS(6)*REAS0H ONE REVIEWED 

lrJC^<^ / J K 

MATERIAL 

PART NUMBER DESaiPTICN OtT REQO OTT ISSUED LAST ISSUE REMARKS AUV EXT AUV. SEU EXT SELI 

.{ ) PAM 00171 
r 

• » a0SED:U0.SUt«RT - CLOSED UtJRK ORDOl SOMMARY - 10:39:52 05 Sep 2002 

f PART HUMBER 10-5267--F UO.NBR SRMA6493 OPEN UORK ORDER REPORT OMl^Y 

rC 

\ 

r 

\ • 

r 

fr. 

r 

SERIAL NUMBERS i 7505122 2 

SALES ORDER REFERENCED 

LABOR 

EMP.NBR 

oinpiANT . 

•* 

NAME 

P0.N8R ITEM DESCRIPTION 

OPERATION 

VEIRXIR NAME 

DATE HOURS OM/TYPE . OH/NR? 

RCD DATE OTY UNIT VALUE CLEARIN6 ANT 

rf;) 

r 

r 

rr 

t 

TOTAL FOR CROUP : FIR 0.000 O.OOO. 

tb.OOd SO.OOO. 

PAM 00172 
o 

-^fi^BismtoM 

AIRMOTIViE CORPORATION 

14*00 40TM AVE. NE \ MARVSVKLE. WA 98271 \ USA 

- TEU 3BOCS1-BZ82 A FAX: 3Ga-C61-0080 

• NEU CUSTOMERS, PRE-PAT IN ADVANCE 

{. ADVAWX PAYMENT 

I . 

T 

O 

T 

% 

H 

1 

P 

T 

0 

-• " 

SUCCESS AVIATION 

ATTN: TON PEKAR 

11191 UESTHEINER 

«874 

HOUSTON, M. 77042 

PACKSLIP 

-?nO. \^^ros^ 

PAOCSltP NBR : 165^125 1 

OATE.isSUEO : 06-24-02. 

REC'D.0ATE : 06-24^(12 | 

TIME 

PAGE NBR 

^mmmm 

: 0St3QMI 

r f • • • 1 

POSTED K 4 

JUN 25 200a 

D 

:ARB ASSY , M r3PA 

01-45 

SPEC P U MING 

PNi 10-5267-F . 

SN: 75051222 

0 6 / :4/02 PAID Vt ^ SSOO.OO C 

2-44 . 1 20040 

20047 

SPEC P U MING 

TNI ; I S A 

CREtIT VIL I BE 

REPIAC ^N T 

<iitD>iiicl titCTWiriiawl 

FOR ON : 

ikSUED AFTER 

L 

BEING SENT IN ON TNI 

WIT HAS BEEN EVALUATI I. 

EA 

S RMA. 

10-5267—M 

*«-^^<^ 

10^5267-F 

REBUILD. MA-3PA 

UPS CRND N/C FRT 

MUST SNIP 6-24-02 

SMIPPINC INFO 

HO.PKGS 

lOIA l UGT 

PACKED BY 

SHIP VIA 

UAYBILL 

HISC 

972iea JUN 24. 2002 ACT 4.4 

SERVICE GNOCOn BILL 5 

TRACKINGH 129721000345679488 

PURCHRSE NO.: ltnR6493 

REF 2: 

PUB SVC CHC $5.82 HPK 1. 

IV se.ee coo se.ee 

oc $e.ee RS se.ee 

AH $e.ee so <e.ee 

HNDL ie.ee SP $e.ee 

NTFY se.ee Hzirr se.ee 

PUB/NET CHG $5.82 $5.82 PAM 00173 

•C ,) 

NOTE:- CORES SUBJECT TO PRECISION'S RETURN POUCY. AOOITIONAL BILLMG MA Y BE APPLIED. A U CORES MUST BE RETURNB) ASAP. 

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-s^/^nBcmtaii 

1480O 40IH Av». Mf. \ M*ry»*«h. VlfA 98271 \ USA 

TEU 3B0 « M2B2 \ FAX; 30a<S1-»080 

CREDIT MEMO 

A MONTHLY CHANGC MAY tC AVVUED 

ON THC.rtCVnUS SALMIOIUSS 

OCMTS ON TMf MIM O OAn AT THE 

MAMMUM AUOWAaU LCGAL RATE. 

INVOICE NO. 

13299 

INVOICE DATE 

09-11-02 

8 

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NEW CUSTOMERS, PRE-PAY IN ADVARCE 

ADVANCE PAYMENT 

SUCCESS AVIATION • 

ATTN: TOM PEKAR 

11191 WESTHEIMER 

#874 

HOUSTON, TX 77042. 

**• CREDIT MEMO •** 

f") 

-1. 

1/10-5267 

REBUILD. HA-3PA 

PAC OS* INVf DA1BI 

RMA6493 133B7B 6-25r02 

UNIT IS BER PLEASE CREDIT 

CREDIT FOR MATERIAL RETURNED 

SN 

75051222 

aSA CC. 

JNDER WARRANTY 

500.000 EA -SOO.OO -SOO.OO 

COMMENTS 

PAYMENT TERMS 

NET 30 

SUB-TOTAL 

MISC. CHARGES 

FRacHT CHARGES ' 

STATE SAUS TAX 

•HVOICE TOTAL 

-SOO.OO 

O.W 

•500.00 

AJ PAM 00175 

'-•*>'.'.i:.:»i=fi-4-:;>^ 

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AWMOTIve CORPORATION 

q^/()-oxCREDIT FORM 

REQUESTED BY . 

RMA# fcV^3 

^ N ^ 

CUSTOMER # 91^1^ ^ CUSTOMER 

CUSTOMER PCX* C) H *W 

XvACC-r3\ Au.' 

OVER SHIP M3* 

SHORT SHIP ^ 

DUPUCATE SHIPMENT *14* 

PRICE / DISCOUNT ERROR *4* 

FREIGHT DISPUTE •?•" 

ORDER CANCELLED / RESTOCKED M1 

ORDER / DELIVERY REFUSED 'i r 

REASON FOR CREDIT !, 

BILUNG / ORDER ENTRY ERROft'liS'' 

~ " WRONG PART NUMBER RECEIVED •16* 

SHIPPED TO WRONG ADDRESS /CUSTOMER *17* 

CUSTOMER ORDERED WRONG PART NUMBER *18* 

CUSTOMER RETURNED EXCESS INVENTORY 

MATERIAL RETURNED UfiibER WARRANTY *10* 

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•2-/M - SOIOSH K]y>A-^y^ \ INVf _ 

•3* RETURNED ON CUSTOMER REF / PACKSUP ^I H 

I '^'h^oy DATE (^-XS~~0^ 

PN \0'S'^^i-r\ SN yj^OiTfO^^ ^ OTY 7 EA PRICE NET $ S~^< ^ " " 

(IF MULTIPLE PART NUMBERS ARE BEING RETURNED ATTACH ISSUE I CREDIT SLIP) 

NCORE NCR 

CORE 

DELETED EACH PRICE NETS 

GLCODE 

TAX$ 

.1000 PROD CODE 

FREIGHT $ 

AUTHORIZED BY W^ 4Lr, 

TOTAL CREDIT $ jr~cx i 

COMMENTS 

DM« 

VA w W ;. . gg ^ ^ ,y-t ^ -H) <i..N^ ^^ k 

DATE <y(ry^Aa -

OMR/SIR# 

DATE INITIALS 

% ^ ^.k^ ISSUE #2 / RESTOCKP/N 

VERIFY AND PROCESS AS FOLLOWS 

1 

OTY 

q n ^ % ^ 

(IF MULTIPLE PART NUMBERS XVRE BEING RETURNED.ATTACH ISSUE /CREDIT SLIP) 

(STOCK IN IBM AT CURRENT COST/AUV) , C/<JX 

ISSUE TO WO AT CURRENT COST/AUV RM/U» - • ' ><.!•• ^ • ... (NOSUPREQ) 

r 

^ - ^ /O [\/yy\ 7 CREDIT.SALES PROCESSES THfe CREDIT TO BE GIVEN CM» ) ^2 i C X ^ 

: U CEN9004R0900 PAM 00176 

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AIRMOTIVE CORPORATION 

BAN CONTROL - CREDIT CARD DEPOSIT 

.!v^.J.v>.?.V.^.... ..^.'^.'1:.17^?M.....V 

DATE 

FAX COVER SHEET 

NUMBER OF PAGES INCLUDING COVJER:. -al 0 _ 

TO COMPANY: PRECISION AVIATION PROnnCTS CORPORATION - ACCOUNTING 

ATTCTmnNi JUDY JOHNSON -425-513-6781 FAX#: 425-355-8412 

CTOM- (JAvA ^ ^SALES: PJRECJSJQN AIRMOTIVE 

CUSTOMER #CK/SQ# RYw/^^Vf-^ ^ CUSTOMERS ^ 9 ? ? ^P " 

COMPANY NAME 3oCCeS S Aui^^-V'i O ^ 

pHONE# 3^Tf "^SZ-^gc/d 

FAX# 

STREET ADDRESS H i' \ \ l ^ e slU e i V^e P # ?> ^ 

rit V |/<)O^T0vN STATE T X ZIP CODEl' l 0 ^ 3.: 

VISA X MASTERCARD OTHER 

CR£DITCARD#. 

(SPEaFYNAME) 

EXP:! 

Cf-cJtiA /> ' \ 

JSAfcff AMOUNT $ l-SO Q . O O J 

TOTALuSAfcE: S /S^O O 'O O J 

APPROVAL: ~^ - ^ 

rAPniRKff • 

FREIGHT $_ ^ _+TAX $_ 

USD 

X 

REF# 

MATCH; EXACT, .Z1P_ _ADDRESS_ .UNABLE TO VERIFY 

DECLINED COMMENTS:. 

PROCESSED BY: - DATE, 

POSTED TO: UNAPPLIED CASH. 

RELEASED BY: " 

INV# 

_DATE_ 

1 1 CRJEDlT CARD PRECISION AIRMOTIVE 01/11/2002 

PAM 00177 

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AIRMOTIVE CORPORATION 

t4aO0 40TH Ave . NCl'Marytvgte. WA 98271 \ USA 

TEl:360«51-8282 \ FAX:360.«S1-a080 

A MONDAY CMAMX MAY W «mj«t> 

0NTHenKvnus««LM«ct'i£SS.' 

CKOITS ON TW MUNG OATt AT.TM. 

MAXMUM MUKMABUICGM. NATC^' 

INVOICE NO. 

13387^ 

INVOICE DATE 

06-S-02 

B 

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NEW aiSTOMERS ORT , PRE-PAY IN ADVANCE 

AOVANOE PATHENT 

e-zfa 

08260250 1 

H 

I. SUCCESS AVIATION 

'' ATTN: TOH TEKAR 

T 11191 UESTHElNEIt 

O #87* 

HOteTON,- TX 77iK2 

PacksUp : 165125 

ORDER NO. 

WMM9 3 

• <rOflOEROATE 

06-2«-q2 

• i 

S^RIA 

DT3J029 

CUSTOMER NO. I LOC 

99999* 

SLSMN. PURCHASE OROER NO. 

M93 

OI/MUXUC 

10-5267—T 

PN: T0-5267--T , CARB ASSY. I«|-3PA 

SN: 75051222 

06/24/0 2 PAID VISA SSOO.OO CI 

2/10-5267 

REBUILD, I1A-3PA 

THIS IS A REPLACEMENT FOR ONE 

CREDIT WILL BE ISSUED AFTER K I T 

NUMBER 

i V t 

DATE SHIPPED ' 

06-2S-02 

BEING SENT IN OH 

MAS BEEN 

500.000 

EVALU JED 

HIS 

E

EA 

.SHN>PED VIA 

UPS GSND 

IMA. 

50O.te 

COMMWITS^ U/CREDIT CARD DO NOT PAY TROH INIS INVOICE 

REMIT TO : 

P.O.BOX 84703 . SEATTLE. W A 98124-607 3 

TEL:425-S 13-078 1 . FAX : 42S-35S-841 2 

SUB-TOTAL 

MISC. CHARGEi i 

FREIGHT CHARGES 

STATE SALES TA X 

INVOICE TOTAL 

PAYMT 

C 

500. I 

500 . 

O 

o 

50C 

PAM 00178 

\3o 
o 

AIRMOTIVE CORPORATIOM 

14«!0O 40T>« AVE. we 1 MARYSVilt WA 9R271 \ USA 

TEL: MO-eSI-CZaZ « FAX: 9Ca6St.«0a0 

8 NEV aiSTOHERS. P«£-P*T W ADVANCE 

t ADVANCE PAYMEMT 

T 

O 

P 

T 

O 

SUCCESS AVIATION 

ATTN: TOH PEKAR 

11191 «ES1HEI«ER 

#87* 

HOUSTON. TX 770*2 

PACKSUP 

PACKSLIP MM. 

DATE.ISSUED 

REC<0.pATE 

TIME 

PAGE NBR 

? 16512S 

: 06-24-02 

t Q6-24-02 

i: 08:30«M 

J V 

9 i 

El 

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n 

DATE 

06-24-02 

01-45 

SPEC PLAfHIMG 

PM 10-5267"f. 

75551222 

06/^4/02 PAID 

2-U 1 

SPEC PUPNIHG 

TNI 

,.OTY 

VI6A 

IS A 

CREDIT WILL BE I 

qiiBPtiicI ty^TRITT*""^' 

8M-: 

YOUR OROER/BEV NO. 

6493/ 

.si3»5f^; -

. ^ 

^ 

ARB.ASSY, Mf-3PA 

(500.00 C 

200*0 

20047 

REPLACpENI FOR OHf 

ESUEO AFTER 

BEING SENT IN ON THIlS RMA. 

(WIT HAS BEEN EVAUMTB) 

UPS GRND N/C FRT 

MUST SHIP 6-24-02 

1 

OI 

SALES NQ. 

RfM6493 

v^AJ 

PART'Men 

EA 

NUORK 

10-5267-.-M 

10-5267^-H 

0T3102S 

4705 

tf?SCWfIKJ(«. 

10-S267-.F 

REBUILD. MA-3PA 

^nm^'"" " »rail»FigitT IICT 

^U" 

SHIPPING iNfO 

HO.PKC$ 

lOlAL UGT ,.i; :. 

PACKED BY •_ 

SHIP VIA , 

UAT8.UL 

HISC . 

. FOim 8130 

^k^^^ - . •• -r. . . .:••• /V :..fr.-: . -:.-V^ - .=/....,..r*i«Ajyi.« l 

PAM 00179 

NOTE:- CORES SUBJECT TO PRECIStON-S RETURN POLICY. AOOrTIONAL SILLING MAY BE APPLIED. ALL CORES MUST BE RETURNED AS . 

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AIRMOTIVE CORPOHATION 

HS i^i /I - o»/ T 

REQUEST FOR RMA # 

(RETURNED MATERIAL AUTHORIZATION NUMBER) 

Our poCcy is lo Pre-Authorize with an RMA # for returned Hems: 

Please complete and fax this form to (360) 651-6080 for RMA consideiafion. Our poRcy is to Repair and Return the unit 

A Customer Service Representative will contad you after the determination is reached.-

Requested By 

Tom Pekar 

Company Name 

Success Aviation 

Date Requested 

June 20,2002 

Branch (if appicable) 

Contact Information (Phone, Fax. E-fnaS) 

(281) 431-4040. (281) 431-2265. tom@successavtation.com 

Your Customer's Name fif applicable) Customer Contact Infonnation ( Phone / Fax / Entail 

Part# 

10-5267 - - F 

Serial Number 

75051222 

u^^:).-')s siA^ ^ 

Una originaiy purchased from? 

AMD Aircraft, part of .new alrplarie 

] iC # Time on Unit 

1400 

SERIAL NUMBER & IC « LOCATED ON.DATA PLATE 

Purchase date 

April 1997 

Warranty Consideration? 

Yes E l No n 

Cii$t6n>er Request, for Woili 

YesQ No Q 

Reason for return 

I was told tty AMD that there was a problem with this carb. The boNs that hold the float bowl keep worlUng loose. 

If this is a Warranty request, has the 

customer received a replacement? 

Y D N D 

If yes. PO# • DS and/or invoice # . 

Has this unK been to a Warranty Repair Slation? Y D N :Q * 

If yes, which one and w^en? 

K the unit is to b« returned to the customer or replaced please provide tite following infonmation. 

Our policy is to ship the unit best way (least expensive) at no charge, if unit is covered under warranty. 

• If requesting expedited shipptnfl. it is at the customer's owii expense. 

Com^ny Name 

Success Aviation 

Attn: 

Tom Pekar 

Addras, City, State & Zip Code 

11191 Westheimer»874, Houston. TX 77042 

Telephorie 

(281) 431-4040 

Fax 

(281) 431-2265 

Shippinii litstrvctkms: (Please pro vMe transport carrier and methocO 

E-mai 

tom@successavlation.com 

Freight COD D 

f ^ Inleihal Use Only: (use back for adtHtion cotrwnents It rwcessairyt 

Return Approved? 

Current IC# 

Y B N D If yes, vffite RMA » above. If no. reason: 

Update lb Current IC 

Yes • No • 

Cost Quoted to Customer to Update and/or Work Requested by Ctntomer 

filease drain the returned Heiti of fuel and mark the box containing ttte returned keth with ttte f^MA # to expedite receMitg. 

If the unH Is not within ttte parameters of our Commercial Warranty^ 

the urM will t}e returned and ^ e customer baled for charges. 

14800 40* Avenue RE. • MarysvHIe. WA S8271 . USA • Phone: (360) 651-8282 • Fax: (360) 651.8080 

GEN57620502 

PAM 00180 

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RMA# In ^9 3 RMA Customer Contact 

Part # /10 </ '^- ^ it^- ^ v y] Serial # ^6o S /2^'^J -

Date ^"Z^'^yU - Contact by Who /A y 

Company Name Stj<LCC 5 < /[vVWAT^^fli I Person Contacted /gm /^^dt r 

I 

I 

/SDU^L ^ev-g^^cT G<^y^t. k 

. i 

Q 

j ^ A ^ kyk. u,fh 7. fc ss r'Zid^. Zg-r-f 37-2^-65 

r f g / / F7/ u,H,L c^e./r,^.j <aAy// 

f^P'lR ^^S^rn S ^ 

• u 

Promised Shipping Date 

Ship VIA v_ 

Additional Charge Quoted, 

GEN 1111 Kxioi 

NA 

NA 

NA 

RAM 00181 

'.-^^•^•'^' "'••'^^»4 

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AIRMOTIVE CORPORATION 

BAN CONTROL - CREDIT CARD DEPOSIT 

DATE:, U-^H-<i^ 

PAX COVER SHEET 

MUMBER OF PAC3ES INCLUDING COVER:. 1 

TO COMPANY: PRECTSiON AVIATION PRODUCTS CQRPORAnON • ACCOUNTTNO 

• 42S.S13.<i78l FAX/>: 425-3^5-8412 

FROM: - A^-^w<> ^ .. __SALES: PRBCISION AIRMQTIVR 

ATTPt^QN: JIJDY JOHNSON 

PRECISION fs i, >* ty^ « 

CUSTOMER ftCKJSO» KYV^A- g'T^-!^ CUSTOMERS *^q^ 5 9 P 

NAME T^«i^uc^-s J r P e /^c . r PHOHEH^Tf-^Sf'^rgc/ d 

COMPANYNAME SOCCf.S5 . Aut^^ I 0V\ FAX<> 

STREHTADDRESS 7 M'l l UJe-s^^-Ue, Iv^e p »T?- 4 

CITY HtJO&-^0»N STATE T X ZIP CODE "71 O *-< 3L 

VISA X MASTERCARD OTHER 

(SPECIFY NAME) 

CREDIT JBXP:j CARDS 

SALE AMOUNT 1 SO O • O O ^+FREIGHT J ^ +TAX $__JC 

TOTAL SALE: S S^Od-OCi _USD 

APPROVAL; 

CAPTURE#. WH0d3k RER> 00312 

MATCH: EXACT. 

^ = ^ .Z1P_ jyJDRESS. _UNABLE TO VERIFY, 

DECLINED COMMENTS... 

PROCESSED BY: / ^O^ZUJOLLCX ' 

POSTED TO: UNAPPLIED CASH ^^ ^ 

RELEASED BY: \A ^ • 

^ ^ ^ 

_INV#_ 

_DATE_ 

rpKnrr CARD PREaSION AIRMOTIVE Oin 1/2002 

PAM 00182 TOTfiL P.81 

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Stage Opin 

Sevtrihr 

.t\K Code 

Remoilo 

JNSrMAINt 

roctNome 

Nature ol Condi 

Nalur«ofCond2 

AlAlcid 

SCREEN 

OTHER 

rortlocalon 

rrecfioc 1 

rrecProcl 

CARBINLET 

NONE 

PortCondiHan 

RplCMNo. 

Operolor. 

LOOSE SOLDER 

19741Z16000S0 

AdlM<r//Mdl AcilSN 

Eng Mlr/Md[ EOQ SN 

PiopMh/Mdi rropSN 

CmplM/Mdl CmptSN 

CESSNA 172 3M77 

CONTO300A 

AcllResNo. ' 

omcudyDate 

lolollime 

lime Sfaice O/H 

N8777B 

7322 FUELCONTROlyCARBUBETOR MARVELSOIEB MA3SPA 3937156 0 

PAimOfS OF SOU)EB nWM Fim-INl^T SCREEN AT CAM SEPARATIB * lODGED IN NKEDIB SEAT PREVENTS 

CUJSING OF JTOEDIE V 

A194SS3 

INSP/MAIOT 

ACCEL PUMP 

OTHER NONE 

CdRRQSEIMINOP 

1978070700038 

CESSNA 172 36739 

CONTO300A 

N9139B 

r 

r 

r 

r 

r 

r 

r 

r; 

W 2452 

7322 FUELCONTROLrCARBURETOR MARVELSCHEB 4002503 2452 

ACCEL PMP aRCUIT STOPPED UP AT DSCHC NOZZLE.PMP PISTON EXPSN SPRING REDUCED TO CLUMPS OP RUST.CK VLV 

SPRNO RUSTED. 

FLOAT RET 

NONE 

BINDING. 

197912130008B 

CESSNA 172 

CONT630W 

29184 CUP-FLOATVLV N2030Y 

tNSP/MAIt(T OTHER 

.* • ' **3 

7322 FUELCONTROUCARBURETOR ^ACETMA3SPA S22549 653 

C UP LOCKING DEVICE BINDS CARB flXJAT. WHEN FUEL TURNED ON NEEDLE VALVE WOULD NOT SEAT ALLOWING FUEL 

TO DRAIN THRU C A 

93608 SCREEN CARBURETOR OBSTRUCTED CESSNA 173 . 46061^ N4161F 

INSPMAINT OTHER NONE 19820108000G8 CONTO300/ 13990D8A 

4 6 

7322 FUELCQNTROL/CARBURETOR MARVELSCHEB MA3SPA 4006ES3 0 

SCREEN ON CARB WAS COATED WITH LAVEH OF LINT AND END OFSCREEN BROKEN LOOSE AT SOLDER JOINT. 

2336J3 VALVE FLOAT MISALIGNED CESSNA 172 28774 N6G74A 

INSP/MAINT OTHER NONE 196903OSOO0>94 CONTO300/ 

4 • . 0 . 

7322 FUELCONTROL/CARBURETO R FACET MA3SPA 3980672 0 

CARB LEAKING FUEL FOUND FLOAT VLV MISAUGNED. DUE TO ASSYMETRIC LOAD CAUSED BY SPRING RETAINER. 

46A6S VENTURI CARB DETACHED CESSNA 172 36970 N4O70F 

CRUISE ENGINE STQPP UNSCHED 1993062300091 CONTOSOOA 138a6D8A .0V10i93 

4 : • • • - 0 • 

7322 FUELCONTROL/CARBURETOR FACET MA3SPA 4004202 0 

AIRCRAFT ENGINE U>ST POWER IN-FUGHT - POST ACOMN T INVESTIGATION REVEALED THAT THE BOWL ATfACH 

SCREWS HAD COME LOOSE ALLOWING TOE PRIMARY VENTURI TO DISLODGE AND REDUCE AIR FLOW THROUGH THE 

CARBURETOR ENRICHING THE ENGINE CAUSING LOSS OF POWER AND SUBSEQUENT EMERGENCY LANDING. 

CFI94593 PUMP ACCELERATO WORN OUT CESSNA 172B 17248666 N8166X 

NOT PARTIAL RPM/ UNSCHED 1991050290020 CONT0300D 02/lSSI 

4 . . "O • 

7322 FUELCONTROL/CARBURETOR PACETMA3SPA . 0 

AIRCRAFT LOST POWER RESULTING IN OFF AIRPORT LANDING SUSTAINING SUGHT DAMAGE. CARBURETOR REMOVED 

AND ACCELERATOR PUMP FOUND WORN OUT AND TRASH IN PUMP INLET CHECK VALVB. PUMP REPLACED, CARBURETOR 

CLEANED. AIRCRAFT TTIEN FLOWN OUT. 

BOWLSqiEWS 

OTHER 

CARB BOWL 

NONE 

LOOSE 

1978022300048 

CESSNA 172C 

INSP/MAINT CONTO300D 

W . 

7322 FUEL CONTROlAIAliBURETOR MARVELSCHEB MA3SPA 

30\W/^SCREWS..WEIffi FOUND LOOSE WITH SAl=iriTWIRE'PROPER.tY INSTALLED 

17248935 N843fiX 

0 

6 

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( 1 

Printed Api802.04 

Page 11 An awsaletyxom Product 

Prepared from Omcial FAA Record} By: 

Afr Data Researc h 

7865 lower View. Heto»es.Tex6s 78023 

210-695-2204 - Fox 2IO-A9S^2301 ink)©oirjafelv.cofH - vflm,x]>nolety.com 

CopyrtgM 1999.2004 Air Dab Reseaicti 

AIRigMs Reserved 
n 

H 

rorlNot 

Stage Opm 

SeveiJhr 

ATA Code 

Remoilci 

rod Nam* 

Nature ol Cond 1 

Nalureo(Cond2 

ATA Text 

rorilocoCon 

rrecProc 1 

rrec Ptoc 2 

rartCondifon 

RplCMNo. 

Operator 

AcHMIr/Mdl 

EngMlr/Mdl 

PropMh/Mdl 

Cn«>l Mli/Mdl 

AdISN 

EfigSH 

rrop.SN 

CmplSN 

. -

AdmesNoJ 

nmeuHyOal* 

-TolallbneVnmStnctiO/» 

46A65 VENTURI CARB DAMAGED CESSNA 172D 172t031S )«t7186 

INSP/MAINT OTHER NONE 19940602002«B CONTO300D 2784U>3P 02/2394 

4 . " •M W • 

7322 FUELCONTROL/CARBURETOR FACET MA3SPA 3817 lOSil 

DISASSEMBLED CARBURETOR FOR COMPLIANCE WITH AD 93-18-03 AND AD 93-19-04. DISCOVERED OJSIfi-PIECE VENTURI 

LOOSE.AND ABLE TO BE DISLODGED. BO m PRIMARY AND MAIN VENTURIES DAMAGED. SUBMITTER SUGGESTED 

OVERHAUL o p CARBUR:QT0R AT ENGINE. OVERHAUL WAS NOT BY APPROVED PACIUTY. SUGGEST COIAI.HUED 

SURVEILLANCE lAW AD'S. •..''. / '. ' • 

A46.A33 VENTURI CARB BORE 

NOT VIBRATIONffiU NONE 

4 PARTIALRPM/ 

7322 FUELCONTROIAJARBURETOR 

DISTORTED 

1991072600051 

CESSNA 172F 

CONTP300D 

FACET MA3SPA 

17251^16 .N7916U 

29022040 ipSOOSl 

8166 

S46549 3160 

PART WAS DISTORTED DUE TO HEAT FROM APPEARANCE, CAUSING ENGINE TO RUN ROUGH. 

f ) 

30766 FLOAT SUNK CESSNA 173G 17254689 . . 

INSP/MAINT OTHER NONE 1987012900005 CONT0300D 82286D6D 

4 • " '••'.' • 0 • • 

7322 FUELCONIROL^ARBURETOR FACET MA3SPA BF0fi72. . 0 

VISUALLYINSPECTEDANDINSTALLEDFLOATCHECKINGTOSEETHATNEEDLEDIDNTLEAK. WITH BOTH TANKS ON. 

BOTH FUEL TANKS DRAINED DRY ON HANGAR FLOOR OVER THE WEEKEND. DISASSEMBLED CARBURETOR AND FOUND 

FLOAT HAD FILLED WITH FUEL AND HAD SUNK VERY NOTICEABLE HOLE AT POINT OP YOKE IN SEAM. 

17383 

INSPA4AINT 

W 

7322 

LEVER ROD 

OTHER 

ACCEL PUMP 

NONE 

GROOVED 

197709210003S 

FUEL CONTROL«;ARBURETO R 

CESSNA 172H 

COtnOiM 

MARVELSCHEB MA3SPA 

17265437 N3937R 

706 

700 

LEVER ROD OF ACCELERATION PUMP SHAFT ASSY BECOMES GROOVED IN SERVICE AND TENDBNC Y TO JAM. 

BOWL 

NONE 

MIS-AUGNED 

1979101lOOOffi 

CESSNA 172H 

CONTOSOOD 

104895 CARB. ACC PU. 17256117 N3217L 

INSP/MAINT OTHER 

4 - 2181 

7322 FUELCONTROL/CARBURETOR FACET MA3SPA BPO-^48 2181 

THROTTLE STICKING REVEALED A LOOSE CARB BOWL& BINDING ACCELERATOR PUMP. THE EXH AUSTSTACK BRACE CAN 

HIDE THIS LOOSE 

FLOAT SEAT LEAKS 

NONE 1981042400073 

16224 GASKET 

INSP/MAI NT INADEQUATE Q 

4 

7322 PUELCONTROIVCARBURETOR 

FUEL WAS LEAKING FROM CARB. FOUND SEAT GASKET LEAKING. 

CESSNA 172H 17285806 N3705R 

CONTO300D 35004D6D 

. • . b 

MARVELSCHEB MA3SPA BFiM12 0 

SCREWS BOWL 

INSPMAINT . FLUID LOSS NONE 

4 

7322 FUELCONTROL/CARBURETOR 

LOOSE 

1979071100092 

FOUND SCREWS LOOSE BOWL TO BODY LEAKING FUEL 

CESSNA 172K 

LYCOS20E2D. 

FACET MA3SPA 

17289180 

L2791927A 

HlitiOO 

600 

600 

VENTURI CARB THROAT MELTED CESSNA 172L 172S9706 N9806Q 

INSPAIAINT WARNING INDI NONE 1981040800061 LYCOS20/ 

4 AFFECT SYSTE 1311 

7322 FUELCONTROL/CARBURETOR MARVELSCHEb MASSPA . 1311 ' 

AT ENG RUNUP AFTER ANNUAL INSP ENG RAN LEAN BETWEEN 1600 + 1900. ENG WOULD QUITATMAG CK. VENTURI 

DISTORTED FROM P R 

( ) Printed Aprii02.04 ' Aftairsafetv.comProduct ' 

•-.^ - Page 12. Prepared From Officio) FAA/iecords By: 

A ir Data Research 

9865 Tower View, ttelotes. lexos 78023 

210-695-2204-Fox 210-695-2301 info©oinsolety.com - www.oirsolely.com 

Copyf)(jl« 1999.2004 Air Oat» Beseant) 

AII«gt«sltet«fwd 

AVA 
r 

r 

r 

r 

r 

r 

r 

r 

r 

r • 

r 

r: 

• • ( » 

r 

Tort No. 

Slag* Opro 

Sever*/ 

ATACjBde 

RMnarics 

INSP/MAINT 

W 

7322 

rortNonte 

Nature ef Cond 1 

Nature ol Cond 2 

ATA Text 

DISCHRG NOZZLE 

OTHER 

Podtocalkm 

Piecfroc 1 

r>*crroc2 

ACCEL PUMP 

NONE 

FUEL CONTROL/CARBURETOR 

Port CondiUon AcA Mir/Mdl 

RplCMNo. EnuMfr/Mdl 

Operator' rropA«r/Mdl 

CmpI Mk/Mdl 

LOOSE .BLANCA7GCBC 

1977102500028 LYCO320A2B 

MARVELSCHEb MASSPA 

AcllSH 

EnflSN 

PropSN 

CmplSN 

A2213862 

ACHIIC9N0. 

DtmcuHyOat* 

Tototltntf 

n m* Sine* O/H 

N36437 

578 

. 878 

ACCELERATOR PUMP DISCHARGE NOZZLE CAME LOOSE FROM CARB BODY CAUSING TOROTTLE TO JAM IN FULL OPEN 

POSITION. 

INSP/MAINT 

•4 

7322 

DIAPHRAGM 

OTHER 

ACCLPUMP 

NONE 

FUEL CONTROL/CARBURETOR 

LEAKING CESSNA A160L 

1978092500055 CONT0200A 

A160049& 

MARVELSCHEB MASSPA BE2317883 

ACCELERATOR PUMP DIAPHRAGM DOES NOT SEAL AND ALLOWS FUEL TO BY-PA.SS. 

N8119L . 

• 348 • 

348 

LINKAGE WORN CESSNA A160L A1600441 N618eF 

INSP/MAINT OTHER NONE 1980120400038 CONTO200A 

4 • 0 

7322 FUELCONTROL/CARBURETOR MARVELSCHEBMA3SPA BB108516 440 

THROTTLE STUCK IN CLOSED POSN FOUND UNKAGE WORN BET>yEEN BUTTERFLY + ACCEL PUMP 

104894 PRIM VENTURI CARB DEFORMED, 

INSP/IHAINT OTHER NONE 19790402000S7 

CESSNA A160M 

CONrO200A 

7322 FUELCONTROL/CARBURETOR FACET MA3SPA 

ROUGH ENQ AND POWER LOSS APPEARS AS IF FIRE IN AIRBOX AND MELTED PRIMARY VENTURI 

A1600987 

2ff2861A48 

N2787J 

206 

206 

UNIVARA2AL0N 

CONTC9016F 

A«5 

48391616 

A30759 FLOAT CARB BOWL RUBBING N6S65Q 

CLIMB OTHER UNSCHED 1976101400019 

W 840 

7322. FUELCONTROL/CARBURETOR MARVELSCHEB MASSPA Q61684 840 

ENG LOST POWER SHORTLY AFTER TAKE OFF.FOUND ONE SIDE OF FLOAT RUBBING ON CARB BOWUALL ADS C-W 

A43A33 VENTURI: PRIMARY 

TAXI/GRND FLAME OTHER 

W OTHER 

.7342 FUELCONTROUCARBURETOR 

DISTORTED 

I977O4180OO6T 

UNIVARA2AL0N 

C0NTC9616F 

A1&3 

48912° 

MARVELSCHEB MASSPA Q61732 

N6653F 

767 

767 

R R E IN INDUCTION SYS ON START DUE OPRIME.1NSP REVEALED CARB PRIMARY VENTURI BADLY HEAT DISTORTHTD 

STRIPPED 

1976092300032 

UNIVACGCIB 

CONTO300/ 

1172 

160269AR 

CARB BOWL N41WW 

CRUISE VIBRATIONffliu UNSCHED 

W OTHER OTHER 0 

7322 FUJBL CONTROL/CARBURETOR MARVELSCHEB MASSPA &P143499 .782 

ROUGH RUNNING ENG RESULTED IN UNSKD LPG,FOUND THE 4 SCRJEW HOLES HOU)ING CARS BOWL^TRIPPED 

20648 N7726K 

62421 l]/30«7 . 

6 

3966766RL 0 

PILOT REPORTED INTERAUTrENT ENGINE RDUGHNESS AND LACK OF PULL POWER. THROTTLE LATER JAMMED IN IDIE 

POSmON. FOUND CARBURETCm PRIMARY VENTURI DISLODGED AND JAMMED BETWEEN THROTTLE PLATE AND MAIN 

DISCHARGE NOZZLE. 

46A33 . 

CRUISE 

4 

7322 

VENTURI CARBURETOR WORN 

• VIBRATlONfflU NONE . 19880210000Z? 

PARHALRFM / 

FUEL CONmbL«:ARBURETOR 

PIPER PA20 

LYCO290D 

MASSPA 

418116 

TAKEOFF 

4 

7602 

CABLE 

ENGINE STOPP 

AFFECT SYSTE 

MIXTURE CONTROL 

CARB END BROKE PIPER PA2213S 221457 

UNSCHED 1983033000037 LYC O290D2 686121 

SNSNOi M74DM 8615 

M/UIVELSCHEB MASSPA 

N17DA 

MIXTURE CONT CABLE BROKE AT LEVER ATTACH ON CARB. CABLE HAD FATIGUE WORK HARDENING FROM AGE AND USE. 

Printed April 02.04 

PagetS . An airsafetv.com Product 

Prepored from Officio/MA Records 8yr 

Air Data Research 

9065 lower View. Helolei. Texos 78023 

210-695-2204 - Fox 210-695-2301 jnfoeairsdlety.com - www.o)rsotety.com 

Copyright 1999.2004 Air Data Aeccardi 

AIRIgtibneHrved 

\<s-
fv 

Pari No. 

Slog* Opm 

Severity 

ATA Code 

Remdrtcs 

30628 

NOT 

4 

7322 

Port Nome 

Nohire ol Cond 1 

Nature o( Cond 2 

ATATtocI 

FLOAT 

PARTIALRPM/ 

AFFECT SYSTE 

Port location 

PrecProc 1 

Prec Proc 2 . 

NONE 

FUELCONTROL/CARBURETOR 

PortCondilion 

ItptCMNo. 

Operator 

SOAKED 

19«gO3280O031 

AcR IWr/Mdl 

Eng Mk/Mdl 

PropMr/Mdt 

Cmpt IM/Mdl 

aESSNAl60Q 

CONTO200A 

FACET MA4SPA 

Acll SH Act! Reg No. .. 

.EngSN. DMlcully Ddl* 

PlopSN Totoinm*-

CmpI SN Urn* Sine* Q/H 

160e6li)S .N3406J 

0 

46SS: • .0. 

ENGINE RAN RICH WITH LOSS OF POWER AT FULL THROTTLE. FLOAT APPEARED SOAKED. LAST ?0 HOURS USED AtfTO 

FUEL. 

96509 

CUMB' 

nNGERSCREEN 

PARTIALRPM/ 

CARBURETOR 

UNSCHED 

PLUOOED 

1989052500014 

CESSNA 160G 

LYCO320B2D 

. 16066132 . N3832J 

1^224S27A 04/14A9 

4 "••.;• . 171 • • • 

7322 FUELCONTROUCARBURETOR FACETMA4SPA 171 

AIRCRAFT LOST POWER SHORTLY AFTER TAKEOFF. EMERGENCY LANDING MADE IN FIELD CAU^DIG SUBSTAtniAL 

DAMAGE TO AIRCRAFT. INVESTIGATION FOUND FOREIGN MATERIAL IN CARBURETOR FINGER SCREEN: JMAINFUEL 

STRAIN&R AND PUMPS CHECKED AND FOUND CLEAN. SOURCE OP FOREIGN MATTER NOT KNOWN. AIRCRAFT HAS BEEN 

INACTIVE FOR EXTENSIVE PERIOD OF TIME BEFORE PURCHASE BY PRESENT OWNER LAST PALL. .. . 

INSP/MAINT 

4 

7322 

FLOAT CARBBdWL 

WARNING INDI NONE 

FLUIDLOSS 

FUEL CONTROL/CARBURETOR 

SATURATED CESSNA I60M ,16077309 N63422 

19821)61800062 LYCO320E2D RL378a627 

MCAULY1C172TM E9J196 •'. 2»2 

MARVELSCHEB MA4SPA BL201297S 292 

ENGINE RAN RICH AND FUEL LEAKED FROM CARBURETOR. FLOAT FOUND SUNK. 

SHAFT 

OTHER NONE 

WORN 

INSPMAINT 19740819O01OI 

W 

7322 FUELCONTROL/CARBURETOR 

THROTLE SHAFT WAS WORN .020 UNDERSIZE AT 2 BEARING AREAS 

CESSNA 172 

LYC O320E2D 

MARVELSCHEB MA4SFA 

n2l»49B N1098M 

" 1417 

1417 

f) 

SCREW HOLES TOP TO BOWL ELONGATED CESSNA 172 , N7096G 

TAXUGRN D OTHER NONE 19.740925000e0 LYCO320E2D 

W • " . 2800 

7322 FUEL CONTROL/CARBURETOR MARVELSCHEB MA4SPA. BL6329r. 2800. 

ENG FAILED TO SHUTDOWN WITH FULL LEAN MIXTURE CONTRqL.MULTI EARED LOCK DEVICES F/ULTp HOLD SCREWS 

TIGHT-BOWLVIBR .:.,. -

I I . . • f - - -* — - • - • . • • • . 

SGREWHOLES TOPTOBOWL ELONGATED CESSNA 172 . N7436G 

TAXI/GRND OTHER. NONE 1974092600061 LYCO320E2D 

W 2121 

7322 FUEL C0NTR0L«:ARBURET0 R MARVELSCHEB MA4SPA BL94387 2121 

ENG rAILED TO SHUT DOWN WITH FULL LEAN MIXTURE CONTROL4 SCREWS HOLDING TOP & BO TTOM BOWL 

TOGATHERJEtECTiyg LOCKNG . ! ' 

10429 BOLTS PARTING LOOSE. CESSNA 172 17269310 N7616G 

INSP/MAINT FLUIDLOSS NONE 197e0310000« LYC032pE2D 

".w • ...••. . 0 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MA4SPA 6^201 9 844 

BOLTS HOLDING THROTTLE BODY TO BOWL ASSY ALL 4 BOLTS LOOSE ALLOWING XEAK AT PART ING SURFACE CAUSING 

RipiTOORlCII 

POORACCELRTION CESSNA 172 

197603111)0088 LYCC320E2D 

106009 

DESCENT WARNING INDI ENGINE 

W OTHER UNSCHED 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MA4SPA 

WHEN APPLYING PWR TO RECOVER FROM PWR OFF STALL ENG STOPPED.EMER LDG OK.OPS CK E NG 

STUMBLE,STOP-CHGD CARB 

172614X6 Ni0698 

397. 

2397 

An airsafetv.com Product '-

Prepared f fon) Ofliciol FAA Records By: 

Air Data Researctt 

98d5 Tower View. Helotes: Texas 78023 

210-695-2204 - Fox 210-695-2301 intoOonafely.com - www.oirjblely.com 

Printed April 02.04 

Page s 

Copyrigl^ 1999.2004 Air Data Recearcti 

Al Rights Reserved 

\.'^,i 
r,: 

r; 

r: 

r: 

re') 

r 

r 

r 

r. •. 

r 

Pod No. 

Slog* Opiis' 

Seveilly 

ATA Code 

Remaita . 

Port Nome 

Nature of Cortd 1 

Nature ot Cond 2 

ATA Text 

Partlocolion 

PrecP/ocl 

Prec Pfoc 2 

Pod Condition 

RptClrfNo. 

Operator 

AcflAMr/Mdl 

Eng MIr/Mdl 

Prop «Mr/Mdl 

CmpI M»/Md 

ActlSN 

EngSN 

PropSN 

CmplSN 

AcHRegNo. 

DiMcullyOate 

Tolallime 

linrie Since O/H 

A16474 BOWL SCREWS LWR FLANGE LOOSE CESSNA 172 17261260 N2O4D0 

INSP/MAINT OTHER NONE 1976072200036 LYCO320E2D L3266927A 

W 1933 

7322 FUELCONTROL/CARBURETOR MARVELSCHEBMA4SPA BL186699 1933 

CARB PARTING SURFACE SEPARATED.ALL SCREWS SAFETIED.INSP OF THREADS IN BOWLSHOWED TOEM DISTORTED & 

WORN • . " ' - • ' . ' • ' ' '. 

THROTTLE VALVE 

OTHER 

CARB INSTALLED WRONG CESSNA 172 17262572 N13206 

INSP/MAINT OTHER NONE 197009I40006D LYC0320E2D L3^7827A 

W 39 

7322 FUELCONTROLn:ARBURETOR MARVELSCHEB MA4SPA BL167176 39 

CARB INSTALLED ON ENGII«: AT OVERIUUL HAD THROTTLE BUTTERFLY VALVE INSTALLED INCORRECaY. ENG RUN 

LEAN. . • '_ . ^ • -

FLOAT WRONG TyPE CESSNA 172 66513 N80312 

INSr/MAINT OTHER NONE 19770S12000S3 LYCO320E2O L4397227A 

W . p 

7322 FUELCONTROL/CARBURETOR MARVELSCHEBMA4SPA CK 13822 0 . 

: A/C HAD A PAST HISTORY OF HARD STARTING.FOUND WRONG TYPE FLOAT IN CARB 

SCREWS TOP HALT TO LOOSE CESSNA 172 17257461 N46720 

INSP/MAINT OTHER NONE 1978081400108 LYCO320E2D L23S8727A 

W . 1327 

7322 FUBLCONTRCL/CARBURETO R MARVELSCHEB MA4SPA 1327 

FOUR SCREWS THAT HOLD THE TOP HALF TO THE BOWL VIBRATED LOOSE. HOLES WERE ELONGA TED 

" NEEDLESEAT CARB LEAKING CESSNA 172 ~ N738WM 

TAKEOFF OTHER NONE 1980020600141 LYCO320H2AD 

4 2170 

7322 FUELCONTROL/CARBURETOR FACET MA4SPA 2170 

ENG FAILED ON TO AND CAME BACK PARTIALLY. CARB FLOAT NOT SEAUNG NEEDLE AND SEAT VALVESRNGSMISSINQ 

FROM HEAT BOX. ." .. • . ; ' • ' - -' 

229690 TUBE ASSY ACCELERATI DISLOCATED CESSNA 172 N737QA. 

LANDING WARNING INDI NONE 1980041400072 LYC032t»I2AD 

4. •' • • 933 ' 

7322 FUELCONTROL/CARBURETOR FACET MA4SPA CK47929 933 

ON APPROACH + IDG UNABLE TO REDUCE POWER BELOW 2100 RPM. ACCELERATION PUMP DISCH ARGE TUBE FOUND 

LYING IN CARB HEAT B • '. . 

78Alio LOCKWASHIK THROT. BODY LOOSE CESSNA 172 17268348 N733KG 

.TAXUGRND WARNING INDI NONE 1980042300096 LYCO320H2AD RL16176 

*.'••' . . * 

7322 . Finsa:, CONTROL/CARBURETOR FACET MA4SPA . CK8530S 614 

.TfiE Loc k WASHER ON THROTTLE BODY BOWL SCREW ALLOWED SCREW TO U>pSEN. THE BOWL LOOSENE© ro 

THRorrruBopV. • ' - ' ' • . - ' 

COATING PEELING CESSNA 172 

1980111400032 LYC 0320/ 

194581 FUMP PLUNGER ACCEL PUMP 

iNSP**AINt OtHH l NONE 

4 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA BL22152S7 0 

ON EfJGiNE OVERHAUL THE CARB DISASSEMBLED AND THE COATING ON ACCEL PUMP PLUNGER W AS POUND PEEUNG 

OFF CONTAMiNATG CA R 

A30769 FLOAT CARB BOWL 

TAXI/GRND FLUIDLOSS NONE 

4. AFFECT SYSTE 

7322 FUELCONTROUCARBURETOR 

OVERWEIGHT 

1982042000078 

CESSNA 172 

LYC O320E2D 

64881 

MARVELSCHEB MA4SPA CK1965 

N61913 

2381 

2381 

ENG WOULD NOT O O WITH MIXTURE CONTROL, AT IDLE.FUEL RAN OUT OF CARB THROAT AFTER SHUTDOWN.CARB FLOAT 

WT28,7GRNEW 17.6. 

Printed /V()r)i 02.04 

Page7 

An airsafety.com Product 

Preixred from Officiol FAA Records By: 

A i r Data Research 

9865 Tower View. Heloles. Texos 78023 

210-695-2204-fox 210:695-2301 info©oirsotety.coro - vi«vw.aisofety.com 

Copytighl 1999.2004 Air Data Reiearch 

A* IVghb Reserved 
a 

r ) 

Port No. 

Stage Opn> 

Savcrty 

ATAO>de 

Remoilcs 

30706 

LANDING 

4 

7i22 

Port Nome 

Noiurecf Cond i 

Nature ol Cond 2 

ATA Text 

FLOAT 

FLUIDLOSS 

VIBRATIONffiU 

PortlocpRon 

Piec.Proc I 

Piec Proc 2 

OTHER 

FUEL CONTROUCARBURBTOR 

PortCondmon 

RplOrtNo. 

Opcralor 

STUCK 

. 1990072600016 

AcH MIr/Mdl 

Eng AMr/Mdl 

Prop IMr/Mdl 

CmplAtt/Mdt 

CESSNA 172 . 

LYCO320D2J 

FACET MA4SPA 

ActtSN AdtRegNp. 

EngSN omcuttyOole 

PropSN Total nine -

CrnplSN ikiie Stiice O/H 

17276399 N99)>64. 

L1202639A 03A)3«0 

0 

. . • ••: 727 

ENGINE BEGAN RUNNING EXTREMELY ROUGH WHILE IN LANDING PATTERN. AFTER LANDING, FUtt , RUNNING OUT OF 

COWUNG. FOUND CARBURETOR FLOAT FULL OF FUEL. REPLACED FLOAT Wr m NORMALOPERATION.. 

MA4SPA 

INSP/MAINT 

CARBURETOR TUBE 

fARTlALRPMfl»WR 

ACCEL 

NONE 

MISSING 

1996120800431. 

CESSNA 172 

LYCO320E21) 

•17262276 1*12805. 

LS5I4627A 09/2566 

4 . ••..;•:. • O. ' 

7322 FUELCONTROUCARBURETOR BL2p]07p4^ 2126 . 

i>IIJOT SAID THE ENGINE HAD AL06S OF POWER AND IT WAS HARD TO START. ENGINE WAS SSUOVBD FOR OVERHAUL 

WITH212STSO. WHEN THE CARBURETOR WAS REMOVED. IT WAS NOTICED THE ACCELERATOR DISCHARGE TUBE WAS 

TRUSSING. SUBMITTER SUSPECTED REASON FOR LOSS OF TUBE WAS CARBURETOR ORE. . • 

BOWL CARB ~ CAME LOOSE CESSNA 1721 .17266802 ; N33601 

UNKNOWN OTHER NONE I97707210006Z LYCOS20E2b L22i4427A . 

W . :. 1130 • 

7322 FUELCONTROUCARBURETOR MA4SPA . IISO 

ENG RAN UEAN AND EWUTIC FOUND CAIffi BOWL LOOSE. SCREWS UX)SE DUE TO WORN PUI^ ^ 

STILLSATTIED' ' -.•:•:•:!••'--. y • • 

16A107. GASKET 

NOT PARTIAL RPM/ 

POWER JET 

OTHER 

BROKE 

1994080100444 

CESSNA172I 17274789 

LYC0320E2D 

4 • 

7322 FUELCONTROUCARBURETOR. FACET MA4SPA . 

CARBURETOR POWER JET GASKET BROKE. SMALLfiECTION LODGED IN POWER JET. ENGINE LOST POWER. 

4C33 VENTURI 

INSPMAINT OTHER 

CARB 

NONE 

BROKEN 

1976082600066 

W 

7322 -FUELCONTROUCARBURETOR 

VENTURI CAME LOOSE IN CARB THROATCAUSING SURGING POWER 

SCREWS 

CUMB VIBRATIONmU 

BOWL 

OTHER 

LOOSE 

1976120100040 

CESSNA 172K 172679^5 

LYCO320E2D L246M27A 

MARVELSCHEB MA4SPA 

CESSNA 172K 17268.162 

LYCO320E2D L2546927A 

N63630 

O6W904 . 

1600 

0 

N79201 

2300 

660 

N79627 

W OTHER 0 : 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA " 1000 

4 EA BOWLSCREWS LOOSE SAFTEY WIRE INTACK SEAL INTACK BOWL SEPARATION AT MATING AREA l-]6IN,VlBRATION AT 

CUMB ' •. ' ..•-•..•.»•;,.•.••-.• ; 

A16676 BOWLGASKET 

INSP/MAINT OTHER NONE 

W AFFECTSYSTfc 

7322 FUELCONTOOLftARBURETOR 

SHRUNK CESSNA172K 17268&(iS : N84634 

1977082200029 LYCO320E2D L2606027A 

1081 

. MARVELSCHEB MA4SPA.BL628«M lOSl . 

ENG WOULD NOT PROPERLY SHUT DN WI1H MIX FULL LEAN & MAGS SHUT OFFJND BOWL GASKET HAD JS^WtUlUN S 

LEAWHOT.FUELIK. 

J94881 ' PLUNGER ACCEL PUMP 

INSPMAINT OTHER NONE 

• , • . ' . . . • 

WORN CESSNA I72K 172$0122 N7422G 

19790223600E6 LYCO320B2D 

4 ' . . 3860-. 

7322 FUELCONTROUCARBURETOR FACET MA4SPA iOOt) 

DURING ENG RUN ENG WOUJJ) QUIT WHEN TOROTTLE WAS OPENED FAST FOUND ACCEL PUMP PLU NGER WORN 11* CARS 

15B)07 

CRUISE 

4 

7322 

SCREWS 

AFFECTSYSTE 

PART SURF 

NONE 

LOOSE 

1982061800044 

FUEL CONTROUCARBURETOR 

CESSNA 172K 

LYCO320E2D 

MCAULY 1CI72MTM 

MARVELSCHEB MA4SPA 

172S8271 .N79944 

L2e60227A 

EI2293 1400 

1400 

THE CARB PARTING SURFACES SCREWS LOOSENED CAUSING AN AIR LEAK INTO FLOAT BOWU RICH MIX DUE TO 

EUMINATIO N OF BACK SUCnON. 

Printed April02.04 

PagtS 

• ^~ Ah alrsafety.com Product '• ' 

/•repored F)om Officio/ FAA. Records By: 

A ir Data Research 

9S65 Tower View, Helbtes. Texas 78023 

210-695-2204 - Fox 216-695-2301 inlo©airaofety.com - wnvw.aiisofety.com 

CopyrigtH i999,2t)04 Air Data 

Rotfoo^od 

M 
( ) 

Pari No. 

Stage <^>m 

Severity 

ATA Code 

Ren^ortis 

46F10 

INSPMAINT 

Port Name 

Nolure ot Cond 1 

Nature 04 Cond 2 

ATA Text 

VENTURI 

OTHER 

Port Location 

Prec Proc 1 

Prec Proc 2 

CARBURETOR 

NONE 

PortCondmon 

Rpt CM No. 

Operator 

DEFECTIVE 

1996010600406 

ActtJMr/Mdt 

EngMlr/lMdl 

Prop/Mr/Mdl 

CmptMfc/Md 

CESSNA 172K 

LYCO320E2C 

ActtSN 

EngSN 

PtopSN 

CmptSN 

17269062 

AdlRegNe. . 

MHcully Dal* 

Total lime . 

lime Since O/H 

N7362a 

12/04«e 

4 100 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 0 

C W AD 93-184)3 BY REMOVING TWO-PIECE VENTURI AND INSTALLING CONSOUDATE D FUELSYSTEM S ONE-PIECE 

VENTURI. THEREAFTER, PILOT REPORTED CRUISE FUGHT FUEL BURN INCREASED FROM 7 GPH TO 9 GPH. INSPECTION 

OP CARBURETOR Aha) VENTURI DISCLOSED NO DISCREPANCIES. BUT AS A PRECAUTTON, A NEW 46-FlO ONE-PIECE 

VENTURI WA S INSTALLED AND FUEL CONSUMPTION HAS SINCE RETURNED TO NORMAL. - -• 

14190 tHROTTLE VALVE CARBURETOR OUTOFAiWUST CESSNA 172K 17257646 N78812 

INSP/MAINT INADEQUATE QC NONJE I997D6260036S LYCO320E2O U478727A 04/26S7 

4 0 • • • 

7323 FUEL CONTROUCARBURETOR MA4SPA CK816294 0 

OVERHAULED CARBURETOR FURNISHED WITll LYCOMING OVERHAULED ENGINE WOUU) NOT IDLE BELOW 1,000 RPM 

AFTERBUILD-UPAND INSTALLATION. CARUBURETOR WAS NEWLY OVERHAULED. RB40VAL AND iNSPECTlON REVEALED 

' TTIETHROTTT^PIATE WAS NOTAUGNED CORRECTLY AND WAS BINDING ON THROAT OF CARBURETOR WHEN CLOSED 

. AND'WOULDNOTHITJDLESTOPWIT H SCREW FULJLY BACKED OUT. . ' 

j I . DEFECTIVE CESSNA 172L 17260314 N7014Q 

i f CRUISE OTHER OTHER 1976021900087 LYCO320E2D 

' W 1162 , 

. 7822 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 1162 

ENG WIUL NOT ACCELERATE * QUITS RUNNING WHEN POWER IS APPUEP AFTER COMPLETION 0 F PRACTICE STALL 

GASKET BOWL LEAKS CESSNA 172L 172S9521 N7821G 

TAXI/GRND WARNING INDI NONE 1981120700063 LYCO320E2D 

4 FLUIDLOSS 6 

7322 FUEL CONTROUCARBURETOR MARVELSCHEB MA4SPA CC7I691 0 

MIXTURE WOULD NOTjSHUTOFF FUEL DUE TO LEAKING GASKET BETWEEN BOWL GASKET CARB. SCREWS WERE LOOSE. 

562209 

TAXI/GRND 

4 

7322 

SCREW LOOSE CESSNA n2 L 

VIBRATIONmU NONE 1986050700023 LYCO320E2D 

PARTIALRPM/ 

FUELCONTROUCARBURETOR FACET MA4SPA 

17260634 N7934G 

L285Q627A 64/04fi«-

802 

CC2823 802 

ENGINE WAS ROUGH RUMflNG INSPECTION SHOWED THAT THE SCREWS HOLDING THE 2 CARB. HALVES TOGETHER WERE. 

LOOSE. THEY AIXOWED MOVEMENT OF THE HALVES. PERMITTING AIR SEEPAGE. 

MA4SPA 

NOT 

CARBURETOR VENTURI MAIN JET CHAFED CESSNA 172L 

OTHER NONE 1992091800051 LYCQ320D2G 

1726d6U N19614 

L749139A 08/1292 

• 4 457 

7322 FUELCONTROUCARBURETOB FACET 0 

TpPq P CARBURETOR WAS LOOSE FROM THE FLOAT BOWU THE ENGINE WOULD NOT SHUT OFF. INSPECTiON,R5VB/U.ED 

THE MAIN JET WAS CHAFED THROUGH IN THE VENTURI AREA. SUBMITTER SUGGESTED PO^IBLE IMPROFERTORQU E ON. 

.REBUILD MAY HAVE BEEN THE CAUSE. • " ' . ••.•.'••••. - . 

24A66 SPRING CARB IDLE WEAK CESSNA 172L 17269324 N7624G 

N o t VIBRATION/BUFFET OTHER 19961Z1800017 LYCO320E2D L2833127A 11/1306 

4 . PARTIAL RFM/PWR 4043 

7322 FUELCONTROUCARBURETOR : F'ACETMA4SPA BL224699 10 

INSTALLED OVERHAULED CARBURETOR AND RIGGED. WITHIN 10 HOURS, OWNER REPORTED ENGINE VERY ROUGH AT 

LOW POWER SETTINGS OR WOULD NOT EVEN IDLE. FOUND IDLE MIXTURE ADJUST SCREW GONE. NOTTFTBD 

OVERHAULE R WHO SENT NEW CARB. UPON INSTALLATION OP NEW UNIT. SPRING TENSION ON AJUST SCREW FOUND TO 

BE WEAK OR NON-EXISTANT AT CORRECT SETTING. OVERHAULER RECOMMENDED STRETCHING SPRING. ; 

106217 CARBURETOR FUELINLET WORN CESSNA172L 17260501 N7201Q 

INSP/MAINT FLUIDLOSS NONE 1998050800876 LYCO320E2D L3287027A 04/0608 

4 , 3149 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 75008623 548 

FUELINLET FITTING HAD STRIPEDTHREADSOUTOF CARBURETOR HOUSING AND LEAKING FUEL, INSTALLED REBUILT 

PART. 

Printed Apftt02.O4 '. '. A n airsafety.com Produc t ' CopyrigM 1^,2004/UrDatafteseardi 

Page 10 Prepored From Offieiol FAA Records By: Al R^Ms Fteteivad 

A ir Data Research 

9865 Tower View. Helotes. lexos 78023 

210-695-2204-Fox 2)0-695-2301 inloeoinotely.com - vi/ww.oirso(e»y-CO"> 
( • 

FortNa 

StaB*Opns 

Severity 

ATA Cod* 

Remortii . 

INSPMAINT 

W 

7322 

Port Nome 

Nolur* ol Cond 1 

Noh»*olCond2 

AUT ^ 

DRAIN PLUG 

OTHER 

Part location PortCondlion 

Prec Pro d RplCMNo. 

Prec Proc 2 Operator 

CARBURETOR MISSING 

OTHER 1975010700021 

FUEL CONTROUCARBURETOR 

ActI MIr/Mdl 

EnglMfr/iMdl 

Prop MIr/Mdl 

CmpI Mk/Mdl 

CESSNA 172M 

LYCO320E2D . 

AcHSH ActtttegNo. 

EngSN. MtlcuRyOal* 

PropSN Totatlim* 

CmplSN HI U Since b/H 

1726^146 . I«30679 

L3963027A 

MARVELSCHEBMA4SPA iCKlOSiS • 3o' 

WAUJAROUNDJ^EL DRIPPING F:R0M COWUNG.POUN D DRAIN PLUG MISSING FROM BOTTOM OFCA.RB-NOPROWSlONTO 

SAFETY PLUG 

THROTTLE SHAFT 

OTHER 

BUSHING WORN. CESSNA 172M 172609^ . NiSOOSS 

INSP/MAINT OTHER NONE 1976012100029 LYCO320Ea) 'L322S927A " . 

W 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEB»4A4SPA'BI;63204 ' 6 

TTIROTTLE SHAFT EXCESSiVLY WORN AT POINT WHERE IT BIDES W BUSHING.ALSO ACqaERAT OR.PVWPUNk^ 

EXCESSrVLYWORN '__ _ •_ ^ •. • "' ••• •• • . ' •. 

DEFECTIVE CESSNA 172M 17261426 N2<)593 

CRUISE OTHER OTHER ' 1976021900088 LYC0320E2D 

, w . ;"••• • -^ •• . V , ' ' -239 7 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA " ...397 

ENG WILL NOT ACCELERATE * QUITS RUNNING WHEN POWER IS APPUED AFTER COMPLETION 0 F PRACHC STAU,' 

A16676 BOWLGASKET SHRUNK 

INSP/MAJNT OTHER NONE 1977082200039 

W . 

7322 FUELCONTROUCARBURETOR 

BOWLGASKET FND TO BE SHRUNK CAUSING BOVVLTO BE LOOSE 

CESSNA 172M 17262P03: . N12473 

LYCO3Z0E2D L3477927A 

1000 

MARVELSCHEB MA4SPA 1000 

•;i ) 

THROTTLE ARM SHAFT ASSY WORN CESSNA 172M 17267091 N14242 

UNKNOWN OTHER OTHER 197710190006S LYCO320E2D L4624127A\ 

W' • .••• 531-

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CKISI^O 531 

THROTTTE LEVER ARM WORN NUT AND COTTER HN WERE IN PIJ*CE BIJT NOT TTGHT TO THE TH ROTTrtJlSEWliVr^ 

LEVER '.-.••.:•.. • -.-•.'•' 

60260 BUSHING THROTTLE MISSING CESSNA 172M 17264174. N4606C 

INSP/MAINT OTHER NONE 1978070300043 LYCOS20E2D 

W • '.-\. 1710,' 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPAA105t36/ 1710 

CONTROL END.OF CARB THROTTLE SHAFT JIAD EXCESSIVE PLAY.FOUND THROTTLE SHAFT BUSHINC JIAD NEVER BEEN 

INST. 

A998 

CRUISE 

4 

7922 

PLUG DRAIN 

ENGINE STOPP 

FLUIDLOSS 

MISSING 

UNSCHED 197910260008Z 

FUELCONTROUCARBURETOR 

ENG QUITPOUND CARBURETOR BOWL DRAIN PLUG MIS^NG. 

TAX1A5RND 

4-

7322 

PRI VENTURI 

WARNING INDI 

CARB WARPED 

OTHER 19791114001Z1 

FUEL CONmOUCARBURETOR 

CESSNA 172M 

LYCOS20E2O 

MA4SPA 

CESSNA 172M 

LYC O320E2D 

FACET MA4SPA 

ENG WOULD NOT DEVLOPE MIN RPM ON RUN UP FOUND PRl VENTURI WARPED AND BURNT 

105135 

CRUISE 

4 

7322 

CARB •.. 

ENGINE STOPP 

FLUIDLOSS 

LEAKING 

UNSCHED 19800I3IOOO60 

FUELCONTROUCARBURETOR 

CESSNA J72M 

LYC0326E2D 

FACET MA4SPA 

172(83806 

. CKlSOi . 

• _ • • ' . 

17264791 

4108327A 

CKtl768 

17262758 

M914127A 

• 

CK714304 

N1937V 

1891 

1881 

N61774 

1670 

1670 

N18440 

203 

203 

LOST PWR IN FLT.FOVND FUEL LEAKING THRO CARB THROAT.SUSPECT STUCK NEEDLE VALVE. 

/ ^ airsafety.com Product ^ ~ 

Prepared from Officiol FAA Recofds By: 

A ir Data Research 

9865 Tower View. Helotes. Texos 78023 

: Fox 210-695-2301 inloOairsotety.com - wviw.disolety .com 

Printed April 02,04 

Pagell 

Copyri^ 1999,2004 Hi Data Research 

/UlRighlsReMrved. 

210-695-2204 
r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

) 

( • ) 

n 

r 

r 

r 

I r 

Part No. 

Stage'Opns 

Severity 

ATA.Cod* 

Remarlu 

/^S0769 

INSP/MAINT 

4 

.7322 

POfl rtOfTtC 

Nolur* ol con d 1 

Nature ol Cond 2 

.- ATA Text 

FLOAT 

FLUIDLOSS 

Partlocaio n 

Prec Proc 1 

Prec Proc 2 

BOWL 

NONE 

FUEL CONTROUCARBURETOR 

Pod CdndOion 

RptCtrtNo. 

Operator. 

SATURATED 

1982060900033 

/URCRAFT LEAKING FUEL FROM CARBURETOR. THE FLOAT HAD SUNK. 

30760 . 

APPROACH 

4 

7322 . 

FLOAT 

WARNING INDI 

AFFECT SYSTE 

FLOAT BOWL 

NONE 

FUEL CONTROUCARBURETOR 

SATURATED 

1982080400078 

AcftMr/Mdl 

Eog Mir/Mdl 

PropMr/Mdt . 

Cmpi Mk/Mdl 

CESSNA 172M 

LYCO320E2D 

MARVELSCHEB MA4SPA 

CESSNA 172M 

LYC Q320E2D 

AdISN 

EngSN 

PropSN 

CmplSN 

17266728 

L4278127A 

17263423 

LS8U427A 

MARVELSCHEB MA4SPA BL20II117 

ENG LOADED WITH FUEL ON APPROACH DUE TO CARB FLOAT SATURATED + SUNK. 

AdlRegNQ. , 

DWcultyOale 

Total Tlni* 

1lm« Sine* O/H 

N9644Q . 

1800 

1800 • 

N5206R . 

2142 

18 

SHAFT 

OTHER 

BROAREA 

OTHER 

SEIZED 

1982092800029 

CESSNA 172M 

LYCO320E2D 

13IS21 171267541 N73562 

CRUISE 

4 • 

7322 FUELCONTROL/CARBURETOR M/IRVELSCHEBMA4SPA .CK510341 20 

CARBTHROTTLESHAFTSEIZEbATJDLEINFLT. FOUNDSHAFTGALLEDATBRG AREA. 

1447 

229660 TUBE ACC DISC CARBURETOR LOOSE CESSNA 172M 17273137 N85ER. 

INSP/MAINT OTHER NONE 1982122000025 LYCO320H2AD U83976 

* . 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 408 

ACCELERATOR PUMP DISCHARGE TUBE SHEARED AT WALL OF CARB TOROAT.FLEET INSP FOUND 6 OTHER CARB WITH 

LOOSE DISCHARGE TUBES. 

INSP/MAINT 

7322 

BOWL CARB 

FLUIDLOSS NONE 

FUEL CONTROUCARBURETOR 

FOUND CARB BOVVL SCREWS LOOSE. 

3076S 

NOT 

4 •. 

T32« 

FLOAT 

OTHER NONfc 

FUEL CONTROUCARBURETOR 

SEPARATED 

19830801000SB 

SINKS 

198a080600in 

CESSNA 172M 

LYC OS20E2D 

MARVELSCHEB MA4SPA 

CESSNA 172M 

LYCO320E2D 

FACET MA4SPA 

17266772 

17265962 

ENG WOULD NOT IDLE, FLOODING. INSP FOUND CARB.FLOAT + LEVEL ASSY WOULD NOT FLOAT IN GASOUNE. 

30769 

INSPMAINT 

4 

7322 

FLOAT 

FLUIDLOSS - NONE 

FUEL CONTROUCARBURETOR 

CAhB LEAKING. FOUND FtOATSUNK. 

INSP/MAINT 

SHAFT ARM SIDE 

OTHER NONE 

OVERWEIGHT 

1984040500010 

GALLED/nOHT 

1984061100008 

CESSNA 172M 

LYC O320E2D 

FACET MA4SPA 

CESSNA 172M 

LYC O320E2D 

64672 

L4090527A 

CK11983 

17263135 

L4036827A 

N9688Q 

0 

N9I3tH 

2000 

2000 

N61607 

1261 

I26I 

N4386R 

4 0 

7322 FUELCONTROUCARBURETOR FACET MA4SPA BL2010642 .« 

THROTTLE SHAFT GAULED * TIGHT IN ARM SIDE BUSHING 6 HRS AFTER O/H: BUSHINGS NEW AhD REAMED WITH MFC 

TOOUP/NMlOa 

A30759 : FLOAT 

INSP/MAINT FLUID LOSS NONE 

4 . 

7322 . FUELC0NTR0L«i4RBURET0R 

CARB LEAKING FUEL FOUND FLOAT OVERWT. 

FUELSOAKED 

1984061300009 

CESSNA 172M 

LYCO320E2D 

MCAULY 1C160DTM 

FACET MA4SPA 

17264310 N8954V 

40O4927A 

725519 1634 . 

CKI1295 1634 

Printed Aprit02.04 ' '• An airsafety.com Product "^ 

Page 13 nepored From Omcto/FAA Records By: 

A i r Diata Researc h 

9865 Tower View. Helotes. Texas 78023 

210-695-2204-Fax 210-695-2301 into@airMlely.com - wv\n»v.airsalety .com 

Copyright 1999,2004 Afr Data Reseaidi 

AIFS^ * Reserved 

1% 
( ) 

Pari No. Port Nome 

StogeOpns Nohire ol Cond 1 

Severily Nature ol Cond 2 

ATA Code ATA Text 

Remorics 

30769 FLOAT 

INSP/MAINT OTHER 

4 

PortlocoHon Porf Condition 

PrecProc ] RplCMNo. 

Prec Proc 2 Operotor 

CARBURETOR WIGHBD HEAVY 

NONE 1984082000012 

7322 . FUELCONTROUCARBURETOR 

ENG FLOODING AT LOW RPM FOUND FLOAT OVER WEIGHT. 

16B78 GASKET 

TAXI/GRND OTHER 

4 FLUIDLOSS 

BODY TO LEAKING 

NONE 1984110900064 

7322 FUELCONTROUCARBURETOR 

AcH/Mfr/ZHdl 

Eng MIr/Mdl 

Prop MIr/Mdl 

Cnv l MIr/Mdl 

CESSNA 172M 

LYCO320E2D 

MCAULY 1C160DTM 

FACET MA4SPA 

CESSNA 172M 

. LYCO320E2D 

MCAULY 1C160DTM 

FACErrMA4SPA 

Acfl SN • . 

EngSN 

PropSN 

CmplSN 

17264240. 

L3987027A 

725612 ;. 

CKUI39 

17263978 

L39i482.7A 

725069 

CK48176: 

AdlRegNo . 

Oitnc«lly Dote 

TolidlinM 

llm*«nceO/H 

M88B1V 

1078 

. 1078 

N60LM 

0 

• 362 

BNO WOULD NOT SHUT DOWN WITH MIXT IN IDLE CUT OFF. POUND FUEL RUNNING OWT AT BOWLTO THROTTIB BODY 

MATING SURFACE; 

16B70 GASKET 

TAXI/GRND OTHER 

4 FLUIDLOSS 

BODY TO LEAKING 

NONE 19841109000(6 

7322 FUELCONTROUCARBURETOR 

CESSNA I72M 

LYC O320E2D 

MCAULY 1C160DTM 

FACET MA4SPA 

17266726 

L447Z627A 

<X9&$a 

N80761. 

0 

289 

ENG WOULD NOT SHUT DOWN WTTH MIXT IN JDLE CUT OFF. FOUND FUEL RUNNING OUT'AT BOWL TO THROt BODY 

MATING SURFACE. 

95809 SCRFXN 

CUMB PARTIALRPM/ UNSCHED 

4 

2820 FUEL DISTRIBUTION 

FUEL STARVATION OCCUR6D DURING CUMBOUT. 

CONTAMINATED CESSNA I72M 17267114 N1447U 

1985092700043 LYCO320E2D L4606227A 

..... . 1*74 . 

FACET MA4SPA .127 4 

FOUND Jjyrr INSID E O F FUE L INLE T SCREE N A T CARBURETOR . 

if) 

SCREWS 

PARTIALRPM/ 

GASKET 

UNSCHED 

LOOSE 

CRUISE 1085120500149 

4 • 

7322 FUELCONTROUCARBURETOR 

FOUND CARB LOOSE AT PARTING GASKET- CAUSING ROUGH ENG OPER. 

CESSNA 172M 

LYC O320E2D 

FACET MA4SPA 

17263880 N20952 

108609M 

0 

800 

A10367832 FLOAT CARB BOWL 

CRUISE VIBRATIONmU UNSCHED 

4 PARTIALRPM/ 

7322 FUELCONTROUCARBURETOR 

SATURATED 

1986012700044 

CESSNA 172M 

LYCO320E2D 

FACET MA4SPA 

17262511 N13119 

L35512'>A 01/13A6 

1690 

1690 

PILOT STATED ENG BEGAN TO RUN ROUGH, COULD NOT RESTORE POWER. MADE EMERG LANDINGIN FIELD. MAlNt 

PERSONNEL FOUND PLAS TIC FLOAT IN CARB SATURATED WITH FUEL. 

30760 FLOAT TOO HEAVY CESSNA 172M . 17266219 N64427 

TAXI/GRND FLAME OTHER 1986050700028 . LYCO320E2D Oan*M 

4 • ' • .. O . 

7322 FUELCONniOUCARBURETOR FACET MA4SPA CK1726 0 

ENGINE COMPARTMENT FTRE OCCURE D WHEN ENGD4E FAILED TO START. CAKB WAS DISASSEMBLED F<>R OVEMIAUL AND 

FLOAT WAS WEIGHED INATa.6 GRAMS. 80 87 FUEL WAS BEING USED. NORMAL FLOAT WEIGHT IS 17 GRAMS . 

FLOAT FLOODING CESSNA 172M 172iS22S . N64488 

INSP/MAINT FLAME NONE 1986062900017 LYCO320E2D L4168027A •4a8« 6 

4 • • . . ' 0 . • • • 

7322 FUELCONTROUCARBURETOR FACET MA4SPA . CKli417 . 0 

AIRCRAFT HAiS HAD AUTO FUELSTO FOR APPROXIMATELY ONE YEAR HAD. BEEN HIGHLYSUSCEPTIBI^TO FLpODING 

AND EXPERIENCED EXCE SSIVE FUEL CONSUMPTION RECENTLY. VERY DIFFICULT TO START WHEN HOT. CARBURETTOR 

SERVICE BULLETIN NOT COMPLIED WITH. DUR ING START ATTEMPT WHILE HOT. INDUCTION HRE STARTED WHIOl 

CAUSED DAMAG E T O HOSE S AN D WIRE S FORWAR D O F FIREWAL L CARBUR E TO R HA S NO T BEE N DISASSEMBLE D AN D 

INSPECTED BY SUBMITTER. BlfT SUBMITTFS I SUSPECTS FLOAT PROBLEMS. 

An airsafety.com Product 

Prepared From Cmd 

Printed April 02.04 

Page 14 rtiool FAA Records By: 

Air Dat a Researc h 

9865 Tower View. Helotes. Texas 78023 

210-695^2204 - Fox 21(W95-2301 intoOoireately.com - www.oiiSQtety.com 

Copyiiglil 1999,2004 Afr Data Research 

AlFtiglilsReteived 

—iQ. 
V) 

( ) 

PortNo. 

Singe Opia. 

Seveity 

ATA Cod* 

Remorics . 

Port Nome 

Nolure of COnd 1 

Nolure oi Cond 2 

ATA Text 

Portlocolon 

Prec Proc 1 

P»ec Proc 2 

Part Condition 

RplCMNo. 

Operator 

Acft MIr/Mdl 

EngMK/Mdl 

Prop MIr/Mdl 

Cinpt Mfr/Mdt 

AdISN 

EngSN 

PropSN 

Cir*ilSN 

AcNRegNo. 

DWcutlyOale 

Total Time: 

TimeSince-O/H. 

LS441I27A 06/20i98 

1006 

7aU10 . LOCK TAB CARBURETOR FAILED CESSNA 172M 

NOT . OTHER OTHER 1998100900309 LYCO320B2D 

4 • • 

7322 . FUELCONTROL/CARBURETOR MARVELSCHEBMA4S.PA . . 0 ' 

• (CAF^ PILOT WAS UNABLE TO SHUT DOWN THE ENGINE. INSPECTION OF THE CARBURETOR POUND THE LONG LOK TAB 

WASHERS ON THE SXFETY. SCREWS. THAT SECURE THE FLOAT BOWL TO.THE CARBURETOR BODY, HAD FAILEO ALLOWING 

THE.MIXTURE VALVB TO SEPARATE FROM ITS RECEPTACLE., SUBMITTER STATED CANADUN AIRWORTHINESS URECrnVE 

.(AD)'<7-«3:9;wlfl<^>lU!roAT^ MARVEL SCHI^ ' 

BEQUIRED THE SAFETY SCREWS TO BE LOCKWiRED. " • "' J 

MA4SPA NOZZLE CARBURETOR SEPARATED CESSNA.172M 

CRUISlE OTHER ENGINE 199g01290«214 ' LYCO320E2D 40652127A 07/0958 

4 MCAULY iClOdDTM KD028 0 

7Ji22 FUELCONTROUCARBURETOR FACET ' BL209931 0 

<CAN) ENGINE JPOWER QOULO NOT BE REDUCED BELOW 2300 RPM, THE THROTTLE APPEARED TO BE STUCK. ON THE 

ADVISE OFT11E TOWER Arm GROUND STAFF. THE PILOT SET UP AN APPROACH AND ONCE LANDING WAS ASSUREDTHE 

EFKJINE WAS SHIJT OFF BY SETTING THE MIXTURE TO IDLE CUTOFF. THIS WAS EXECUTED AND AN UNEVENTFUL 

LANDING WAS CARRIED OUT.. POST-FUGHT INSPECTION FOUND THE CARBURETTOR ACCELERATOR PlAfP DISCHARGE 

NOZZLE HAD SEPARATED FROM THE PUMP AND JAMMED THE BUTTERFLY-VALVE CAUSING LOSS OF THROTTLE CONTROU 

MA4SPA FLOAT BOWL . CARBURETOR LOOSE CESSNA 172M . 17262891 N13628 

NOT PARTIAL RFM/PWR OTHER 19991218000S3 LYCO320E2D M723127A I0Q7<99 

4 • • 0 • 

7322 FUELCONTROUCARBURETOR 76 

PILOT REPORTED ENGINE WOULD NOT IDLE. REMOVED COWLING. FOUND FLOAT BOWL LOOSE. THRElB LOCK TABS 

Mli^NC . THE FOUKTH LOCK TAB CRACKED. ALL BOLTS .VERY LOOSE. ' ' " ' ' ' 

SCREW CARBUREn'OR LOOSE CESSNA 172M 17261208 N20345 

INSP/MAINT OTHER NONE 2000010800601 LYCO320EZD L3281127A 12/17S9 

•*; . •• • • 0 •- • 

7322 . ..FUELCONTROUCARBURETOR FACETMA4SPA1052n DC3612. 1320 

DURING SCHEDULED INSPECTION, CARBURETOR THROTTLE BODY TO BOWLSCREWS WERE FOUND LOOSE. REMOVED 

FROM ENGINE. INSPECTION REVEALED NO FURTHER DEFECTS. NEW GASKET AND LOCKING TABS INSTALLED. CAUSE; 

POSSIBLE GASKET SHRINKAGE OR UNDERTORQUE OFSCREWS. SUSPECT GASKET SHRINKAGE AS LOCK TABS WERE BENT 

TOLOCKSOIEWS. 

30804 FLOAT FUEL DAMAGED CESSNA 172M 

INSP/MAIN T OTHER NONE 2001090600090 LYCO320EZD 

4 MCAXILYIC160DTM 

7322 FUELCONTROUCARBURETOR FACCTMA4SPA 

(AUS) CARBURETTOR FLOAT CONTAMINATED WITH FVEL CAUSING CARBURETTOR TO FLOOD. 

229660 TUBE ACCELERATO LOOSE 

INSPMAINT OTHER NONE 1980062600047 

4- • ' 

7322 FUELCONTROUCARBURETOR 

bimiNG INSP FOUND ACCELERATOR PUMP DISCHARGE TUBE LOOS& 

229560' 

INSP/MAINT 

.4 . 

7342 

229560 

INSP/MAINT 

4 

7322 

TUBE ACCELERATO 

OTHER NONE 

FUELCONTROUCARBURETOR 

TUBE ACCEIJilRATO 

OTHER NONE 

FUEL CONTROL«ARBURET0R 

LOOSE 

19800625000« ' 

LOOSE 

1980062600049 

BLl 98636 

CESSNA 172N 17269521. 

LYCO320H2AD L238476 

MARVELSCHEB MA4SPACKS8606 

CESSNA 172N 17269569 

LYCO320H2AD U43376 

MARVELSCHEB MA4SPA CK611368 

CESSNA 172N 17289623 

LYCO320H2AD L23437.6 

MARVELSCHEB MA4SPA 2010020 

08/22A1 

0 

163 

N27ER 

0 

969 

N40ER 

0 

418 

N2iBER 

0 

1245 

PrMed /^pril02.04 

Page 17 

210-695-2204 

An airsafety.com Product 

Prepared From Ofncio) FAA Records By: 

Air Data Research 

9865 lower View, Heloles. Texas 78023 

' Fox 210-695-2301 inlo@oirsolety.com - www.oirsatety.cora 

Copyright 1999.2004 Air Data Raseardi 

Al Rights Reserved 

\ ^ : 
n 

PortNo. Port Nome 

Stage Opn> Nature ol Corid t 

Severity Nature ol Cond 2 

ATACode. AlATexl 

ReiriartU 

Portlocatbn PortCondRton 

PrecPrecl RplCMNo. 

Prec Proc. 2 Opeiolor . 

AdlMir/IMdl 

EngMtr/JMdl 

PropMtr/)Mdl 

CmpI Mfr/Mdl 

AcllSN AdlRegNo.. 

EngSN DRncoMy Dole 

Prop SIf Total lime 

CmplSN Time.Since O/H 

105018 BOWL LOOSE CESSNA 172N 17268015 N'>6879 

NOT . OTHER NONE 1981022300211 LYCO320H2AD RL44776 

4 .- :1<*2-

7322 FUELCONTROUCARBURETOR MARVELSCHEB .CK3496o l45Z. 

CARB BOWL HOUSING LOOSE ORIGINAL LOCK WASHERS STTLL IN TACT.ENG WOUU) SHUT OFIF WITH QHL X MINtMAL 

CONTTtOLMbVEMEiNT • , , . : . -. . 

229S60 TUBE ACC DISC CARB MISSING CESSNA 172N- 17271445 N87ER 

INSP/MAINT INADEQUATEQ NONE 1981030200163. . LYCO320H2AD L234176 

4 •".•'' ; O'.-

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA' CKT14442. '474 

DURING MAINT THE ACCELERATOR DISCHARGE TUBE WAS MISSING FROM CARB THROAT. 

CARB THROAT MISSING 

NONE ~ 1981040100060 

229G60 TUBE DISC 

INSP/MAINT OTHER , 

4 

7322 FUELCONTROUCARBURETOR 

DISCHARGE TUBE MISSING FROM THROAT OF CARBURETOR. 

CESSNA172N '73140 N92ER. 

LYCO320H2AP . L219176 . . • 

.,388 

MARVELSCHEB MA4SPA.CK8i.622l 388; 

46A33 VENTURI 

NOT VIBRATIONmU 

4 WARNING INDI 

7322 FUELCONTROUCARBURETOR 

CARB THROAT DAMAGED 

NONE 19810609000(0 

CESSNA 172N 1727Q366 N73aZK 

LYCO320H2AP L332376 

MARVELSCHEB MA4SPA CK4937r 1214 

ENG LOW ON POWER + ROUGH. HUMARY VENTURI MISSING FROM GARB. POUND VENTURI IN NO 4 INTAKE TUBE. 

BOLT 

WARNING INDI 

THROTTLE 

NONE 

LOST 

1981O7226OO90 

CESSNA 172N 

APPROACH LYC0320H2AO 

. , " - 4 • 

( ) 7603 POWERLEVE R MA4$P A 

THE BOLT ATTACHING THROTTLE TO CARB FELL OUT DURING LANDING APPROACH. 

RL36387IT 

N6410F 

1195 

.1196 

131621 SHAFT VALVE THROAT WORN 

INSP/MAINT OTHER NONE 1981081100080 

4 

7322 FUELCONTROUCARBURETOR 

EXCESS /UCIAL PLAY IN CARB THROTTLE VALVE 3^2 TO 1 « INCH. 

CESSNA 172N 

LYCO320H2AD 

17270917 

L446476 

MARVELSCHEB MA4SPA CK510917 

N789YR 

1000 

1000 

60260 BUSHING THROAT WORN 

INSP/MAINT OTHER NONE 1981081100081 

4 

7322 FUELCONTROIA^ARBURETOR 

EXCESS AXIAL PALY IN CARB THROTTLE VALVE 3/32 TO 1/8 INCH. 

CESSNA 172N 

LYCO320H2AD 

17270917 

L445476 

MARVELSCHEB MA4SPA CK6I091T 

NTSSYR 

40Q0 

1000 

131621 SHAFT VALVE THROAT WORN 

INSP/MAINT OTHER NONE 1981081100082 

4 

7322 FUELCONTROUCARBURETOR 

EXCESS AXIAL PALY IN THROTTLE VALVE SHAFT AND BUSHINGS. 

CESSNA 172N 

LYC0320H2AD 

17269967 

L2S8676 

MARVELSCHEB MA4SPA CK48659: 

N738aN 

1920 

596 

60260 BUSHING THROAT WORN 

INSPMAINT OTHER NONE 1981081100083 

4 . • 

7322 FUELCONTROUCARBURETOR 

EXCESS AXIAL PLAY IN THROTTLE VALVE SHAFT AND BUSHINGS. 

CESSNA I72N 

LYCP320H2AD 

17269967 

L288676 

MARVELSCHEB MA4SPA CK48666 

N73SGN 

1920 

99 0 

( I Printed Aprl02.04 

Page 19 

An airsafety.com Product 

Prepared yn Official FAA Records By: Frorn 

A ir Data Research 

9865 Tower View. Helotes. Texas 78023 

210-695-2204 - Fox 210^95-2301 inioOoltsolety.com - www.airsoiety£bm 

CopyrigM 1999.2004 Afr Data Research 

AIRigMs Reserved 

\ ^ -
K 

port No. 

Stage Oprts 

Severily 

ATA<:ode 

Remorics 

INSP/MAINT 

4 

7322 

NO TEXT 

Part Name 

Nature d Cond 1 

Nature d Cond 2 

AlATcxI 

TUBE 

OTHER 

Port locoRon 

Pr*c Proc 1 

Prec Proc 2 

NONE 

FUELCONTROUCARBURETOR 

PortCondilion 

RplCMNo. 

Operdor 

MISSING 

AcllMlr/Md 

Ehg/Mtr/Mdl 

Prop MIr/Mdl 

CmplMk/Md 

CESSNA l72N 

LYCO320H2AD 

ActlSN 

Eng«H 

PropSN 

CmplSN 

17268673 

MARVELSCHEB MA4SPA C235970 

A d l Reg No. 

OmcdIyDdl* 

Total nme • 

Time Since O/H 

M46ER 

188 

188 

VENTURI 

WARNING INDI 

CARBTHROAT BROKEN 

NOFffi 1981081400076. 

CESSNA 172N 17270714 N739QE 

NOT WARNING INDI NONE 1981081400076. LYCO320H2AD L463S76 

4 • " ff • • 

7322 FUELCONTROUCARBURETOR- MARVELSCHEB MA4SPA 10633 0 

POWER LOSS DUE TO BROKE PRIMARY VENTURI. VENTURI INJESTED IN INTAKE MANIFOLD. 

• ( ) 

SHAFT CARBURETOR WORN 

iNsPMAirrr OTHE R NONE . I98IO83IOOO » 

4 

7322 FUELCONTROUCARBURETOR 

CARB THROTTL E SHAFT HAD EXCESS AXIAL PLAY a02 TO U8 INCH. 

229660 TUBE DISC. BARREL SEPARATEP 

CRUISE WARNING INDI NONE 1981102800096 

4 AFFECTSYSTE 

7322 FUELCONTROUCARBURETOR 

CESSNA 172N 

LYCO320H2AD . 

17270917 

L445476 

MARVELSCHEB MA4SPA CK610917 

. -

CESSNA 172N 

LYCO320H2AD 

MARVELSCHEB MA4SPA 

•I727I290 

UT3076 

CK816217 

N7S9YR 

.1000 

1000 

* 

N21ER 

786 

786 

THE PUMP DISCHARGE TUBE SH>ARATED FROM BARREL WALL AND LODGED BETWEEN THROTTLE BUTTERFLY + BARRJEa. 

JAMMING THROTTLE. 

22176 HOUSING LWR CARB CRACKED. 

NOT FLUIDLOSS NONE 1981111200060 

7322^ FUELCONTROUCARBURETOR 

THE FLANGE CRACKED ON HOUSING PUMP INLET, OF CARBURETOR. 

SCREWS- BUTTERFLY LOOSE 

NOT AFFECTSYSTE NONE 1982062900054 

CESSNA 172N 

LYC O320H2AD 

MARVELSCHEB MA4SPA 

CESSNA 172N 

LYC0320H2AD 

17269161 

L177076 

6660 

17273251 

L703276 

N734VZ 

251 

251 

NT3S8F 

4 . 1002 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CK71S959 1002 

THE ENGINE COULD NOT BE LEANED WITHOUT QUITTING. BUTTERFLY VALVE SCREWS VERY LOOSE WORKING OUT. INSTWITH LOCKTITE. 

131526 

CRUISE 

4 " . . 

7603 

SHAFT 

AFFECTSYSTE 

INADEQUATEQ 

POWERLEVER 

TOP OF BODY FROZE 

UNSCHED 1982070700042 

CESSNA 172N 17273311 N46S6G 

LYC 6320H2AD L123476 . 

' . • , 0 • 

MARVELSCHEB MA4SPA CK36028 16 . 

THE CARBURETOR THROTTLE SHAFTPROZE 15 HRfi /IFTER ENG OM. A/C MADE EME R LANDING AT 1900 RPM. 

)0»I35 CARBURETOR BTWN 

I^ISP/MAINT • INADEQUATEQ NONE 

4 • 

7322 FUELCONTROUCARBURETOR 

IMPROPER MATING CESSNA 17214 

198209170.0088 LYC0320H2AD 

1.7272704 N62MD 

RL76ai76T 

.. .' " <i 

MARVELSCHEB MA4SPA Ckl092 0 

EXCESS GAP BETWEEN 2 HALVES OF CARBURBTOR£USPECT IMPROPER TORQXJE OP BOLTS OR DEFLECT IN THRBADS.QF. 

BOLTS OR MATING HALVES. 

60260 BUSHING 

INSPMAINT OTHER NONE 

.4' 

7322 FUELCONTROUCARBURETOR 

CARB THROTTLE SHAFT WORN EXCESSIVELY. 

WORN CESSNA 172N 17272207 N8466E 

1982101300048 LYC0320H2AD. RL665076T 

701 

MARVELSCHEB MA4SPA C449064 701 

~ An airsafety.com Product 

Prepored From Officio/FAA Records By: 

A i r Dat a Researc h 

9865 Tower View, Helotes. lexco 78023. 

210-695-2204 -fox210-695-2301 into«ciinblety.ccim -www.airsofety.com 

Printed April 02.04 

Page20 

Copyrighd 999.2004 Afr Data Receardi, 

A l Rights ReMTwed 

^5 
o 

f) 

-( 1 

Port NO. 

Slog* Opm 

Severily 

ATA Code 

Remorlcj 

46A33 

INSP/MAINT 

4 

7322 

Pari Nome 

Ndur* d cond 1 

Ndui«dCond 2 

ATA Text 

VENTURI 

AFFECTSYSTE 

Portlocdion PoilCondWai 

PrecProcT ItplCMHo. 

Prec Proc 2 Operdor -

CARB THROAT MISSING 

NONE 1984052600023 

FUELCONTROUCARBURETOR 

CARB VENTURI ENTERED ENGINE. . 

INSP/MAINT 

7322 

BUSHING 

PARTIALRPM/ 

TOROTTLE WORN 

NONE I98406160QOSE 

FUELCONTROUCARBURETOR 

RPM DROPPED BELOW 1500. POUND. BUSHINGS WORN THROTTLE SHAFT. 

INSP/MAINT 

4 

7322 

BUSHING 

PARTIALRPM/ 

THROTTLB WORN 

NONE 1984061800601 

FUELCONTROUCARBURETOR 

Adl Mir/Mdl 

EngMir/Md 

PropMh/Md 

CnvfJMfr/Md 

CESSNA 172N 

LYCOS20H2AD. 

FACET MA4SPA 

CESSNA 172N 

LYC6320H2AD 

FACET MA4SPA 

CESSNA n2N 

LYCO320H2AD 

FACETMA4SrA 

POOR ACEL ON ENG RUN UP FOUND BUSHIlilGS WORN CARB THROTTLE SHAFT. 

104331 

INSP/MAINT 

7322 

CARB BOWL 

OTOER 

SCREWS LOOSE 

NONE 1984082200013 

FUELCONTROUCARBURETOR 

FOUND CARB BOWLSCREWS LOOSE LOCK WASHER WERE INSTALLED. 

181521 

INSP/MAINT 

4. 

7322 

SHAFT 

OTHER 

BUSHING WORN 

NONE 1986062000044 

FUELCONTROUCARBURETOR 

CESSNA 172N 

LYCOS20H2AD 

FACET MA4SPA 

CESSNA 172N 

LYC0320H2AD 

FACET MA4SPA 

ActlSN 

En^ M 

PropSN. 

Cinpt SN 

17272800 

CK47179 

• . ' • . 

17270174: 

•CK49267\ 

17272953' 

CK7I3690 

17273836 

AdlRegNo.. 

btmcullyOde 

TotaHJmi ' 

'Time: Stnce O/H 

NS439D. : 

• ' *;. . 

1960. 

1960 

N738RG 

• 861; •• 

801 . • 

H1087P. 

1666 

. 1666. 

N6790J . 

RL658876T 

CK61lil« 

17371213 

L460667 

108136 . 

ANNUAL INSP. NOTED PLAY IN CARB TOROTTLE SHAFT. REMOVED AND POUND EXCESS WEAR ON SHAFT:.. 

: 401 

.N2267B 

1067 

• 6. . . 

CARB FLOAT SEPARATED CESSNA 172N 172C9643. N737NJ 

INSP/MAINT PARTIALRPM/ NONE 19860421000% LYC6320H2AD RLI96976; 02/24M 

4 • 1481- • 

7322 FUELCONTROUCARBURETOR FACETMA4SPA C36665 , I38J 

THE CARBURATpR ON THliS AIRCRAFT WAS FOIJND SEPAIUTEP AT THE PARll) ^ SURFACE. THE FliOATBO 

WORKED ITS WAY DOWN 1/8 INCH. THE AIRCRAFT STILL HAD 6 MONTHS LEFT ON ITS ANNUAL IT API^EARS THE GASKET 

PARTLY FAILED IN CONJUCTION WTTH THE TAB LOCK WASHERS. AFTER THE, TAB LOCKS FAILED YOU (»'li^jiTORN IHB .. 

SCREWS BY HAND ! IT IS RECOMMENDED THAT.TOEPIUIT HAVE THE AIRCRAFT CHECKED SINCE HE HAD )^R.^^ ^ 

PERFORMANCE AND VERT ROUGH IDLE. . ' ' . •: '"'•'•". '"'_ " '' 

666915 FLOAT CARB; DEFECTIVE. CESSNA172N 17269765 N737XM 

CRUISE ENGINE STOPP UNSCHED 19870707000S LYCO320H2AD LOtie2^6T.i)SA66»7 

4 240. '•• 

7322 FUELCONTROUCARBURETOR FACETMA4SPA CK9L8|317 240 

TOE ENGINE AND CARBURETOR INSTAUJm IN TOIS AIRPUVNE WERE FURCIUSEO FACTORY NEW AND INSTV^ ^ 

HOURSACa TOB OPERATOR OF THE AIRCRAFT DEPARTED TRENTON, MAli^I^OR A LOOM. FilGirr IN THE AR ^ THE 

ENGINEQUT IN CRUISE AFB) THE PILOT TURNED AROUND TO RETURNTO TRENTON. TOE PILOT WAS ABLE TO RE-START 

THE ENGINE AND ITQUTT A SECOND TIME. TOE PILOT WAS ABLETO AGAIN RE.START THE ENGINE - ON FiMALAPPROACH' 

THE ENGINE QUIT FOR THE TOIRD TIME. RE-START WAS UNSUCCESSFUL CONSEQUENT INVESTIGATION FtEVEALED A 

SUNKEN FLOAT IN THE CARBURETOR. 

46A33 VENTURI 

NOT VIBRATIONmU NONE 

4 PARTIALRPM/ 

7322 FUEL CONTROUCARBURETOR 

BROKEN 

1987091500031 

CESSNA 172N 

LYCO320H2iAb. 

FACET MA4SPA 

17268564 N7S3US 

RL002.0137 06/I2iBT ' 

0 

11773 . 357 

PILOT COMPLAINED OF INTERMITTENT ROUGH ENGINE. CHECKED MAGS, PLUGS, LEADS, SCREENS. COMPRESSION, 

BORESCOPED CYUNDER AND COMPLiED WITH LYCOMING SI 1425 REAMED VALVE GUIDES. PROBLEM STILL OCCURRED. 

Prihtod April02.04 

page 23 

' An airsafety.com Product . ^ 

Prepared From Oma d FAA Recorcis By: 

Air Data Researc h 

9865 Tower VBW. Helotes. Texos 78023 

210-695-2204 - Fox 210^95-2301 fr\toeaiisalely.com - www.airsotety.com 

Copyright 1990,2004 Afr Data Research 

AIRIghti Reserved 

. Q ' t l 
f^) 

PortNo. 

Stdgc Opns 

Severity 

ATA Code 

Port Name 

Ndure d Cond 1 

NoluredCond2 

ATA Text 

Port locolon 

Prec Proc 1 

Prec Proc 2 

PortCondlion 

ilpiariNo. 

Operdor 

Actt/Mtr/Mdl 

EnglMk/Md 

PropMfr/Md 

CniplMfr/Md 

AdISN 

EngSN 

PropSN 

CmptSN 

AdlRegNo. 

OMcdtyOote 

Totdllme. -

n m * sine* O/H. 

C) 

Remdrtcs 

INSPECTION CARB THROAT AND DISCOVERED VENTURI WAS MISSING. FOUND CRUiSHBD VENTURI NOZZLE WITIi LEGS 

MISSINGIN NR 4 INTAKE TUBE. AD 63-22-03 DOES NOT COVER THIS CARB. FACETDOESNOTRE^UIRETHB VENTURI TO BE 

REPLACED AT TBO; SO THIS PART COULD HAVE BEEN AROUND FOR A LONG TIME. ENGINE IS A LYCOMING FACTORY 

REMAN ZERO TIME WITO 367.0SMOH. • ' ' . . 

SCREW CARBURETOR LOOSE CESSNA 172N 17268306 N733HK 

INSP/MAINT FLUIDLOSS NONE 1988022200015 LYCO320H2AD RL40676 02/n3«8 

4 928- .. • 

•7322 FUELCONTROUCARBURETOR MA4SPA 928. ' ; 

T HE CARBURETOR BECOMES LOOSE ATTOESPUT OF TOE TWO HALVES. THERE IS USUALLT AN INDICATION OF FUEL 

LEAKAGE. THISIS A BEOCCURRINGPROBLBVI ON 160.152. 172ANDlteS. THE ENGINE CUTS OUT AS IF A PLUG HAS FOULED. 

ORTHEMAGSARE FAULTY. TOSOLyETHE.PROBLEM.REMOVETHBCARBURETOR..tHEN.T10HTBNB6LTSFBOMTHE • 

THROtTLE BODY TO THE FUEL BOWL ASSEMBLY. REPUCE LOCK TABS AND REPLACE FUEL BOWL GASKET IF NBCESSARvJ 

PROBABLE CAUSE IS U)CK TABS AREW SUFFICIENT ENOUGH TO HOLD FUEL BOWL BOLTS; " . . . 

FLOAT CARBURETOR LEAKING CESSNA 172N 17273076 N4714F 

APPROACH FLUIDLOSS ENGINE 19880&lb006a> LYCO320H2AD 04/09«8 

4 . • . . 0 

7322 FUELCONTROUCARBURETOB . FACET MA4SPA CK714505 800 

AFTER A FUGHT FROM ORANGJE^VA. TO PHD, OHIO, UPON REDUaFW POWER. IN THE PATTERN AT PHD. THE ENGINE 

COMPLETELY SHUT DOWN. AFTER A SAFE LANDING. FUEL WAS RUNNING OUT OF THE BOTTOM OF COWLING. 

DISASSEMBLY OF CARBURETOR REVEALED BRASS FLOAT WAS APPROXIMATELY HALF FULL OF FUEL TT SINCE 

CARBURETOR WAS OVERHAULED 800 PLUS. ] . 

IDLE VALVE MIXTURE AIR CAME OUT CESSNA 172N 17269876 N738CR 

INSP/MAINT OTHER NONE 1988070600063 LYC0320H2AD L311276 06n)l«8 

4 0 

7822 FUELCONTROUCARBURETOR FACET MA4SPA CK47834 0 

IDLE BLEED AIR VALVE (MIXTURE. IDLE) CAME OUT ON GROUND RUNUP ENGINE WOULD NOT IDLE. SUBMITTER 

RECOMMENDS CHECKING SPRING TENSION EACH 100 HR: .. . •' '_ 

CF131621 THROTTLE SHAFT CARBURETOR WORN CESSNA 172N 17270922 N739YW 

INSP/MAINT OTHER NONE 1988070700074 LYC0320H2A0 L746876T Oe/IOAS 

4 . , •' 1626' 

7322 FUELCONTROUCARBURETOB FACETMA4SPA CK814800 1826 

DURING ANNUAL INSPECTION. FOUND TOROTTLE SHAFT AND BUSHINGS WORN. REMOVED AtA) REPLACQ) CARBURETOR 

AND REPLACED THROTTLE SHAFT AND BUSHINGS. PROBABLE CAUSE-NORMAL WEAR. ': ; 

VENTURI PRIMARY BROKEN CESSNA 172N 17273914 N7834D 

INSPAfAiNT OTHER' NONE 1989010400001 LYC0320H2AD L66S079 IIADIAS 

4 15SJ 

7322 FUELCONTROUCARBURETOB FACETMA4SPA . 106135; 1531 . 

AIRCRAFT WAS UNDERGOING A 100 HOURS INSPECTION WHEN NR 4 CYLINDER WAS NOTED TO HAVE LOW COMPRESSION. 

DURING RUNUP TOE ENGINE WAS NOTEDTO EXPERIENCE VIBRATIONS (ROUGH RUNtaHG) BETWEEN 1800-2000 RPMS. THE 

NR 4 CYLINDER WAS REMOVED AND WAS SEFfT OUT FOR REPAIRS. TWO PUSH RODS WERE ALSO NOTED. BENT. UPON . 

CYUNDER DISASSEMBLE, AS TOE NR 4 CYUNDER INTAKE PIPER WERE REMOVED. THE MECHANIC HEARD AN OBJECT '.-'••• 

FALL OUT OFTHB INTAKE PIPE. A CRUSHED. ROUND METALUC OBJECT. OF ABOUT I INCHBY.OOlNCHFELLOUTOiPTOE 

PIPE. INVESTIGATION REVEALED THAT ALL CYUNDERS HAD BENT PUSH RODS. UPON REMOVAL OF THE CARBURETOR . 

AND DISASSEMBLE OF TOE SAME. THJE PRIMARY VENTURI WAS MISSING FROM THE MAIM VENTURI. . 

30766 FLOAT CARBURETOR LEAKS CFiSSNA 172N 17268282 N733GJ 

LANDING ENGINE ST(»>P OTHER 1989061100102 LYC0320H2AD L673676T 0V18M 

4 1033 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CK8186I9 1033 

CARBURETO R FLOATLEAKEDALLOWINGITTOFILL WITO GASANDSINK. ENGINE Dffib ON POWER REDUCTION FOR 

LANDING. FLOAT APPEARED TO BE IN GOOD CONDITION. NO WEAR MARK ON TOE OUTSIDE. WHEN FLOAT WAS SHOOK 

GAS COULD BE HEARD INSIDE 

Prfrited April02.04 ~"~ Att airsafety.com Produc t ~~' Copyright 1999.2004 Afr Data Research 

Pa9e24 Prepared From (jiniciol FAA Records By: - AIRfgMs Reserved ' ' 

A ir Data Research 

9865 lower View. Helotes. Texas 78023 

210-695-2204 - Fox I10-69S-'230» .vlloeoino1elY.com-wWw.cMsotety.com ''^^-' 
/^-\ ( ^ 

( ') 

PortNo. Port Nome Port location PortCoodWon AcRMIr/Md 

StogeOpris NduredCond l PrecPn^cl RplCtriNo. Eng/Mlr/Mdt 

Severily Notur* d Cond 2 Prec Proc 2 Operdor . Prop Mh/Md 

ATA Code ATA Text CmplMk/Md 

Remortu . 

AdISN AdlRegNo. -

EngSN DMcvRyDde 

PropSN' Id d lim * 

CmptSN iirr)« Sine* O/H 

47773 MAIN JET FUELBOWL DEBRISCLOG CESSNA 172N 17274007 N5I97K; 

CUMB PARTTALRFM/ OTHER 1993110200016 LYCO320H2AD IQ/IABS 

4 •' O-.' 

7322 FUELCONTROUCARBURETOR FACET MA4a>A CX81lil96 0 

AIRCRAFT LOSS OF POWER AT ABOUT 3.000 FEET IN CUMB OUT. FOUND PROBLEM IN CARBURETOR HAD CHECKED AT 

OVERHAUL SHOP. FOUND DEBRIS IN MA{N JET. (XEAWSO OUT. INSTALLED ON AIRCRAFT, OPS GHECKE P OK/iYMA4SPA 

INSPMAINT 

4 

VENTURI ENGCAR B FAILED CESSNA 172N 1727189T ; HS662E 

OTOER NONE I994033KM03I LYC032QH2Ab L25B47i8' 03/1104 . 

OPO R ' ;:•. . -'.0 ; •• 

7322 FUELCONTROUCARBURETOR . ' 0 

INSPECTION FOUND VENTURI FAILURE CTWO HECE) AD 93-18-08 NEEDS TO BE COMPLIED WITH SOOtlERTHAN THE 48 

MONTHS. ENGINE RAN ROUGH AND DROPPED 100 RPM. • . - •••..•. ". . ; 

66«9I« FLOAT CARBURETOR LEAKING CESSNA172N 17367798 N7!t868 

APPROACH ENGINE STOPP OTHER" 1994061600074 LYCO320H2AO .Lt:Ifi676 , 04/1104 

4 • ' . ..<20. 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CKOIOBSO 0 \ 

ENGINE FAILURE OCCURRED IN AIRPORT TRAFFIC PATTERN WHEN THROTTLE WAS REDUCED. SUCCESSFULLAFn)iNG 

MADE ON AIRPORT. PROBLEM COULD NOT BE DUPUCATED ON GROUND RUN.UP. CARBURETOR WAS REMOVED AND SENT 

FOR REPAIR. METAL FLOAT FOUND TO CONTAIN FUEL FLOAT REPLACED. . 

106136. CARBURETOR JET ENGINE BLOCKED CESSNA 172N 17273786 N6416J 

INSPMAINT OTHER NONE 1996080400767 LYCO320H2AP .06/1906 

4 ' •.••.••; • 0 •".-

73J2 FUELCONTROUCAHBimETOR FACETMA4SPA CT6ld931 1248 

TEAR DOWN OF CARBURETOR TO IDENTIFY REASON FOR FAILURE. MAI N JET ASSEMBLY WAS FOUND PARTIALLY 

BLOCKED, BLOCKAGE REMOVED USING A .040 INCH PIECE OF SAFETY WIRE PASSED THROUGH THE OUTLET. END OF THE 

MAIN JET ASSEMBLY. , 

CK13983 CARBURETTOR ENG.FUEL FAULTY CESSNA 172N 

DESCENT VIBRATION/BUFFET NONE 1996110100999 LYC0320E2D . L4388427A 04/0106 

4 . • - - .'..•••'; • 0 .- . • 

7822 FUELCONTROUCARBURETOR FACETMA4SPA CK13983 - d 

(AUS) CARBURETTOR FAULTY - SUSPECT TEMPORARY CONTAMINATTON OR INTERMnTENT FAILURE COMBINED WITH • 

NON FIRING OF N04 CYLINDERCAUSED ROUGH RUNNING ENGINE - CARBURETTOR ICING WAS DISMISSED AS THE CAUSE 

229164 DISCHARGETUBE CARB PUMP DETACHED CESSNAI72N .17271717' NOliSE 

NOT PARTIAL RPMrt>WR UNS(3IED 199702270i60'!6 LYCO320H2AD L504376 lOro406 

* •..'•':•••.• . 0 . • 

7322 FUELCONTROL/CARBURETOR MA45PA AI06I26 . 0 

CARBURETOR PUMP DISCHARGE TUBE ASSY CAUSE ADRIFT INGESTING IN ENGINE, KNOCKING LOOSE THE SOUD 

COMBIISHON PARTICLES IN TOE COMBUSTION CHAMBER WHICH FOULED A NIMBER OF TOE SPARk PLUGS 

SilMULTANEOUSLY LOSING 60 PERCENT OR MORE OFTHE POWER BEING NEXT TP TOE AIRSTRIP, SAFE LANDIFN3 WAS 

MADE. 

103136 CARBURETORSCntEW ENGINE LOOSE CESSNA172N. 

TAXI/GRND OTHER OTHER 1997052900235 LVC0320H2AD RLl258ir6T 02/1197 

4 , i • ' ' ':'•;"•. . 95 0 . " 

7322 FUELCONTROUCARBURETOR FACETMA4SPA CK7i4J71 .0 . 

(CAN) THE ENGINE DID NOT STOP AFTER THE MIXTURE CONTROL WAS CLOSED. THE ENGINE WAS STTQPPED BY SHUTTTNG 

OFF THE MAGS. INSEPCTION FOUND THAT FOUR SCREWS THAT HQLD THE CARBURETOR ILO^YES TOGETHER WERE LOOSE 

AND ONE OF TOE SCREWS WAS BROKEN THE BROKEN isCREW WAS REMOVED AH D REI^CE D Ami-HI B OMl^UllEtOR WAS 

REASSEM|!]£P AND INSTALLED. TOE ENGINJE GROUND RUN SERVI C 

.SEBvicg.- . • . ' '""'"'' . '•'••'. ' "••••• " ' ':"• ' ;;••••; • 

MA4SPA CARBURETOR THROTTLE DEFECTIVE. CESSNA 172N 172C8167 N91QS 

INSP/MAINT. INADEQUA1EQC NONE 1998043000436 LYCO360A4M 02/1608 

4 • . • 0 ' 

7322 FUELCONTROUCARBURETOR 0 

INSPECTION OF TOE CARBURETOR DETERMINED THE TOROTTLE ARM BECAME LOOSE ON THE SHAFT: THIS bONDTnON 

RESULTED IN LOSS OF CONTROL OF ENGINE RPM. THE NUT AND COTTER PIN WERE INTACT. iSUSPECT THE ORIGINAL 

Printed Aprii02,o4 "! Afialrsafety.tom Product 

Page 27 Prepared Ftom Official FAA Records By: 

Air Data Researc h 

9865 rower View. Heloles. lexat 70023 

210-695-2204-Fox 210-695-2301 in|o9ofrsolety.com.-vvww:oirsolety.com 

Copyright 1999.2004 Afr Ootaf Resaanii 

AIRigMs Reserved 
fT) 

PortNo. 

Stage Opm 

$*v*rily 

AM Cod * 

R*mciriii 

Port Nome 

Ndur e d Cond 1 

Ndur* d Cond 2 

ATA Text 

Portlocolon PortCondHion 

PrecPioc I RplCMNo, 

Prec Proc 2 . Operator 

AcR AMr/Md 

Erig IMIr/M.d 

PropMtr/Md 

CmplMfr/Md 

ActlSN AdlRegNo . 

ErigSN 0«icullyOale 

PropSN TddTim* 

Cmpt SN Time Since O/H 

INSTALLATION WAS NOT PROPERLY INSTALLED AND TORQUED AILOWING THE ARM TO BECOME LOOSE. IT IS 

SUGGESTED THAT CORRECT INSTALLATION ANp TORQUE WOULD PREVEWT THIS CONDITTON. 

MA4SPA 

CRUISE 

4 

7322 

CARBURETOR 

INADEQUATE Q C 

PARTIAL RPM/PWR 

SEPARATED 

OTOER 2000062800063 

FUELCONTROUC^ARBURETOR 

CESSNA 172N 

LYCO320H2AD 

17273579 N6212G 

RL5I5876T 04/04«0 

764 

0 

AIRCRAFT E1«INE RAN ROUGH DURING FUGHT. WAS UNABLE TX) SHin-ENGB^E DOWN USIFWMIXTUHE CONTROL 

FOUND CARBUISTOR B6wLSEt>ARATTNG FROM CARBURETOR BODY. ALL SCREWS WERE SECURED BY SAFETY T/IBS AND 

FACTORY tORQUE SEAL BUT iSCREWS WERE LOOSE ! SUBMITTER SUSPECTED IMPROPER TORQUE OF SCREWS DURING . 

OVERHAUL CARBURETOR REPLACgp W iWOVERHAULED UNIT. FUNCrnOjfjS NORMAL 0 0 . ' ' . 

229560 TUBE ACC DISC CARBURETCHl LOOSE CXSSNA172P 172767772 N65626 

INSP/MAINT OTOER .NONE 1982122000023 LYCO320D2J L1223539A 

4 269 

7322. FUELCONTRCiUCARBURETOR MARVELSCHEB MA4SPA 269 

ACCQJUIATC R PUMP DISCHARGE TUBE SHEARED A t WALL OF CARB THROAT JLEET WS ? FOUND 6 OTHER CARB WITO 

LOOSE DISCHARGE TUBES. . . . - • 

229660 . TUBE ACC DISC CARBURETOR LOOSE (XSSNA172P 17274182 N93ER 

INSP/MAINT OTOER NONE 1982122000021 LYCO320D2J L1008239A 

• 4 - •• • • 0 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MA4SPA 246 . 

229550 DISCH6TUBB CARB MISSING CESSNA 172P 17274184 N96ER 

CRUISE ENGINE STOPP OTHER 1983011200113 LYCO320D2J L1264139A 

4 . .' 715 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CK818085 715 

PILOT REPORTED ENG FAILURE IN FLT.FOUND ACCEL PUMP DISCHARGE TUBE MISSING NO 4 LWR PLUG FOULED. 

229660 ACCEL PUMP TUBE CARBURETOR LOOSE CESSNA 172P 17275783 N82ER 

INSP/MAINT OTOER NONE 1983012800132 LYCO320D2J L1242839A 

383 

7322' FUEL OJNTROUCARBURETOR MARVELSCHEB MA4SPA CK817465 383 

FOUND ACCELERATOR PUMP DISCHARGE TUBE WAS POUND LOOSE JflEW TUBE INSTALLED WITO LOCKTITE. 

229S60 : ACC NOZZLE PMP CARB DETACHED CESSNA 172P 17276783 N82ER 

CRUISE INFLIGHT SEP NONE 1983022500071 LYCO320D2J L1242839A 

4 . 442 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CK8I74S6 442 

CARB ACCELERATOR PUMP NOZZLE DISLODGED & WAS INJESTED BY TOE ENG AT CRUISE PWR SUSPECT BONDING AT 

FAULT.. ' ' • •' • . • .••..•. . 

229660 . ACCPMPtUBE CIARB LOOSE CESSNA 172P 17274182 N83ER 

INSP/MAINT OTOER NONE 1983022800037 LYC 0320/ . L1008289A 

4 .' • ' ' 883 • 

732)! FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CK8I5572 383 

FOUND ACCELERATOR PUMP DISCHARGE TUBE LOOSE- REPORTED TO BE RECURRING PROBLEM. RPL CD CARB. 

229560 DISH TUBE ACCELERATO LOOSE CESSNA 172P 17275238 N212ER I 

INSP/MAINT OTOER NONE 19630323000« LYCO320D2J j 

* • •• • .9 ' "i -

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA CK7610 31 • 

NOTKXT. i 

Printed April02,04 ~~~- ' ~~ An airsafety.com Product "~ Copyright 1999,2004 Afr data Research 

.Page28 PreporedFrorh Official FAA Records 6y: Al iVghts Reserved 

A ir Data Research 

9865 lower View. Helotes. lexos 78023 

210^95-2204-Fox 210-695-2301 frtfo©oirs6tety .com - v«vw.oirsalety.com ( Q 
( • ) 

Pari No. 

SfogeOpm 

Severity . 

ATA Cod* 

Remorics 

229W0 

INSP/MAINT 

4 

7321 

NO TEXT. 

Part Nome 

NoluredCond l 

NatuiedCond 2 

ATA Text 

Pattocdki n 

PrecProc 1 

Prec Proc 2 

DISCH/VRGETUBB ACC PUMP 

OTOER OTOER 

FUEL CONTROUCARBURETOR 

PariCpndHon 

RplCMNo. 

Operdor 

LOOSE 

1983042000043 

229(60 . DISCHGTUBE CARBURETOR LOOSE 

INSP/MAINT OTHER NONE 1983912100082 

* 

7322 FUELCONTROUCARBURETOR 

ACCELERATOR PUMP DISCHARGE TUBE FOUND LOOSE. . 

ActtMh/IMd 

£ng.Mlr/Mdr ... 

PropMir/iMd 

CnvtM»/Md 

CESSNA I72P 

LYCOS20D2J 

FACET MA4SPA 

CESSNA 172P 

LYC0320D2J 

MA4SPA 

ActlSN 

EiigSN. 

PrOpSN 

CmplSN 

. I72741.M 

L998339A 

CK816206 

I727418l> 

LioosesgA 

CK815&ra 

AdlRegNo . 

Dmcdh'.Date . 

TotdBme 

1 ^ Since O/H 

N96EB 

.'O'.".' 

•', 0 .. 

N91HI 

. b : 

.673 

INSp/MAINT FLUID LOSS . NONE 

• 4 . ' • 

7321 FUEL CONTROUCARBURETOR 

CARB LEAKING RETURNED FOR WARRANTT^ 

LEAKING CESSNA 172P 17275791 : N66628 

1983042700202 LYCQ320DaI L1195338A 

•.''••'• • 12 6 

MARVELSCHEB MA4SPA CK8I79S6 126 

229S60 TUBE 

INSP/MAINT OTOER 

4 

7322 . FUELCONTROUCARBURETOB 

FOUND ACCEL PUMP DISCHARGE TUBE UXDSE. 

ACCEL PUMP LOOSE 

NONE 1988060500138 

CESSNA 172P 17276799 N84ER 

LYCO320D2J L12402S9A 

477 

MARVELSCHEB MA4SPA CK818202 ; 477 

( ) 

INSPMAINT 

7322 

NO TEXT. 

TUBE CARB 

OTOER NONE 

FUEL CONTROUCARBURETOR 

LOOSE 

1983051700034 

CESSNA nZP 17274183. N95ER 

LYCO320D2J L9988399A. 

MARVELSCHEB MA4SPA CK6IISS7 ,197 

229660 PUMP DISC TUBE. CARB LOOSE 

INSP/MAINT OTHER NONE 198307200002) 

4 

73M FUELCONTROUCARBURETOR 

INSP FOUND ACCELERATOR DISCHARGE TUBE EXTREMELY LOOSE 

CESSNA 172P 

LYCO320D2J 

74182 N93BR 

468 

MARVELSCHEB MA4SPA CK816209 468 

TUBE LOOSE CESSNA 172P 17276008 N78ER 

INSPMAINT IHADEQUATE Q NONE 19831117000U LVC0320D2 J L13097^A 

4 • •. • . 6 2 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CK81.8364' 62 

THE ACCELERATOR DISCHARGETUBE WAS FOUND LOOSE ON ACCEPTANCE INSP. SUB SAYS OTHERS IJ* FLEET INGESTED 

INTOENG. 

TUBE CARB BOWL OUT OF POSN CESSNA n2 P 

INSPMAINT OTOER NONE 1984011000040 LYCO320DZI 

4 

7822 FUELCONTROUCARBURETOR FACET" MA4SPA 

ENG HARD TO START. FOUND ACCEL PUMP DISCHARGE TUBE OUT OF POSN. 

17278703 

Li243139A 

CH81742iS 

N65184 

866 

860 

PN158107 BOLT 

INSPMAINT FLUIDLOSS NONE 

4 • 

7322 FUELCONTROUC;ARBUBETOR 

CARB HALVBS LKNG. FOUND THRU BOLTS LOOSE. 

LOOSE 

19M010600092 

CESSNA 172P 

LyCO320D2J 

MCAULY ICIOODTM 

FACET MA4SPA 

17276089 N64956 

Lil43iB39A 

BCIOS 1173 

CK817i39 1173 

~ An airsafety.com Product "^~ 

Prepared From Official FAA Records fly^ 

Air Data Research 

9865 Tower View. HeMeS; Texos 78023 

• fox 210-695-2301 ih/o©<iirsofety.com - wwwxiir$otety.com 

Copyright 1999.2004 Afr Data Research 

. AIRi{jMsReseived 

Printed /Vprii 02.04 

PagB29 

210-695^2204 \*v\ 
fC' 

:C ) 

PortNo. 

SlageOpni 

Severity 

ATA Cod* 

Rerrtoila 

TAXIAJRND 

4 

7322 

Port Nome 

Notare d Cond i 

Ndur«dCond 2 

AIA Text 

OTOER 

Port loedtan 

. PrecProc T 

Prec Proc 2 

BOWL 

OTHER 

FUEL CONTROUCARBURETOR 

PortCondMon 

Rpt CM No. 

Operdor 

LOOSE 

1985051400101 

AcH /Mfi/Md 

Eng iMIr/Md 

Prop Mtr/Md 

CmptAU/Md 

CESSNA 172P 

LYCO320D2J 

FACET MA4SPA 

AcilSN 

EngSN 

. PropSN 

CmptSN 

1727677» 

C1223939 

(X817682 

A d t Reg No. 

DORcd^rpal*' 

lotalllm* 

Tlrn* Since O/H 

N66664 

946 

ENG WOULD NOT SHUTOFF PROPERLY WITO MIXTURE CONTROL QN INSP FNDCARB BOWL HALVES LOOSE. LOCKS ON 

SCREWS WERE INTACrr.. 

NOT 

•4 . 

7322: 

BLOAT BOWL 

FLUIDLOSS 

OTOER 

OTOER 

FUEL CONTROUCARBURETOR 

fLOAT BOWL WORKED LOOSE FROM CARBURETOR. 

INSP/MAINT 

4 

7322 

CARB 

OTOER 

INADEQUATE Q 

BODY/BOWL 

NONE 

FUEL CONTROUCARBURETOR 

CARBSPUT AT THROTTLE BODY -i 

&TO1763 

INSPMAINT 

4 

7322 

PAL NUTS 

CrtHER 

INADEQUATE Q 

WORKED LOOSE 

1989060400008 

SEPARATED 

19861003000(6 

CESSNA 172P 

LYCQ320D2J 

FACET MA4SPA 

CESSNA 172P 

LYCO320D2J 

MA4SPA 

BOWL DUE TO IHSUFFiaENTSAFETY OF ATTACH BOLTS. 

CARB ATTACH 

NONE 

FUEL CONTROUCARBURETOR 

PAL NUTS MISSING ON CARB ATTACH NVTTS. 

MISSING 

1985112900116 

CESSNA 172P 

LYCO320D2J 

MCAULY 1C160DTM 

FACET MA4SPA 

• • • , 

17276894 . 

L126d839A 

Ck817990 

17274961 

17276482 

L1S89639A 

&67FB181 

CK91888 

N6S798 ' : 

0 

0 

N643S6 

1100 

1100 

N128ER : 

10^806 

0 

. 0 -

SCREWS BOWLBODY LOOSE CESSNA 172P 17275078 N54920 

TAXI/GRND OTOER OTHER 198512310009S LYCO320D2J . L1136239A 11/18JB5 

4 •• '• ' •• • •. 1976 . 

7312 FUELCONTROUCARBURETOR FACET MA4SPA CH81.7191 .197 6 

ENG WONTSHUTDOWN WHEN MIXTURE WAS PULLED TO itJLE CUT OFF"-INVEST REVEALED ALL FOUR SCREWS HCUMNG 

BODX BOyiO. WERE LOOS E. LOCKING TABS WERE PROPERLY BENT.TICHTtNING SCREWS CORRECTED PROBLEM.. 

PROBABLE CAUSE WAS jSEAL OR GASKET COMPRESSIN G WiTOAGERECQMMENDINSPECTIONEACH lOOHMNSPECTTON.. 

ACCEL PUMP C/VRB NO OUTPUT CESSNA 172P- , 17276253 N91ER , 

INSPMAINT OTHER NONE 19(|70701000B LYCO320D2J L1352639A 01/2707 

4 •• •' ' '•'•. . 98 • 

'7322 FUELCONTROUCARBURETOR FACET.MA4SPA 0X919211 »« 

AFTER 98.2 HOURS OF OPERATION IT WAS POUND THAT THE ACCELERATOR PUMP WOULD NOT DISCHARGE FUEL. ON 

JANUARY 19.1987 TOE CARBURETOR WAS SENT BACK TO CESSNA FOR WARRANTY. TOE NEW WARRANTY CARBURETOR 

WAS THEN RECEIVED ON JANUARY 26.1987 SWCK4-19233. UPON OPERATIONAL INSPECTION IT WAS FOUND THAT THE 

NEW WAIUtAIffYCARBURETXlR ALSO HAD AN ACCELERATOR PUMP TTIAT WOULD NOT DISCJMRGE FUEL • '• \ 

ACCEL PUMP CARB NO OUTPUT CESSNA 172P - r72762&3 N91ER 

INSP/MAINT OTOER NONE 1987070100018 LYC632eD2J L13526MA 01/2607. 

:4 ' : e''. : 

7322 FUELCONTROUCARBURETOR .FACETMA4SPA CK919283 0 . 

AFTER 98.2 HOURS OF OPERATION IT W/VS FOUND THAT THE ACCELERATOR PUMP WOULD NOT DISCHAROE FUEL. ON 

JANUARY 19.1987 TOE CARBURETOR WAS SENT BACK TO CESSNA FOR WARRANTY. TOE NEW WARRANTY CARBURETOR 

WAS TOEN RECEIVED ON JANUARY 26.1887 SftI CK4-19233. UPON WHIATIOHAL INSPECTION IT WAS FOUND THAT THE 

NEW WARRANTY CARBURETOR ALSO HAD AN ACCELERATOR PUMP THAT WOULD NOT DISCHARGE FUEL 

THROTTLE PLATE 

VIBRATTON/BU 

CARB SCREW MISSING CESSNA 172P 17276210 N97664 

TAKEOFF VIBRATTON/BU UNSCHED 1987072200037 LYCO320D2J L1331939A 06/1907 

4 '• • . ' • 0 

7322 FUELCONTROUCARBURETOR FACErTMA4SPA CK818537 0 

ENG ROUGH ON TAKEOFF PILOT WENT TO PULL POWER OFF BUT WAS UNABLE DUE TO TOROTTLE PLATE JAMB DUE TO 

:SCREW MISSING. UPON INSPECmON FOUND SCREW IN NR 4 CYL INTAKE TUBE. 

( ) An airsafety.com Product 

tVepored From Otiicfril FAA Records By: 

Air Dat a Researc h 

9865 lower View. Helotes. Texas 78023 

210-695-2204 - fox 210-695-2301 inio9aiisalety.eom - vww.ofrsotely.coro 

Printed >VprilQ2.04 

Page 30 . 

Copyright 1999,2004 Afr Data Resiiarch 

Al Rights Resened 
PailNo. 

Slog* Opm 

Severity 

ATA Cod* 

Remortts 

A46A33 

NOT 

4 

7322 

Port Nome 

Ndur e d Cond 1 

Ndur*dCond 2 

AIAText 

VENTURI 

VlBRATTCmmU 

PARTIAL RPM/ 

' Port locolon 

Prec Proc 1 

Prec Proc 2 

CARBURETOR 

NONE 

FUEL (X)NTROUCARBURETOR 

PortCondWon 

RplCMNo. 

Operator 

BROKEN 

1993072900019 

ActtMlr/Md 

EngMlr/Md 

PropMlr/Md . 

Clmpt/Mfr/Md 

CESSNA I72P 

LYCO320D2J 

FACET MA4SPA 

AcllSN AcHRegNo. 

EngSN pitll<;dly Od e . 

PropSN Told Time 

CmplSN. lime Sine* O/H 

17274623 Nl^S t 

Ll087l8aA 06/1763 

1335 

CK816744, 0 . 

PRIMARY VENTURI BECAME LOOSE AND LODGED IN NR 4 CYUNDER EXHAUST VALVE AND CREATED A ROUQH ENGINE 

WITO POWER LOSS. 

INSP/MAINT 

GUP 

OTOER 

VENTURI 

NONE 

MISSING 

1993100500061 

CESSNA 172P 

LYCO320D2J 

'.•-'' • 

17276659 ^ N9447L 

L1413339A O9/2I0i3 

4 •..••:••• • -1817 

7322 FUELCONTROUCiUlBURETOR FAdETMA4SPA ! . 0 

ON INSPECTION WTTH CARBURETOR REMOVED, FOUND SPUT VENTURI. ON RBMOVALOF CARBURETOR Bovii^ INNER 

VENTimi WAS Ul^T AND ONLY 2 OF 3 CUPS COUU) BE FOUND. GASKET SHOWS IMPRINT OF TOIRD C^P . ENDS OF 

VENTinU SUPPORTS SHOW WEAR. WILL INSPECT COMPLETE INTAKE AND CYUNDER BORES FOR TOIRD CLIP OR DAMAGE 

FROMCUP.' ~ . • 

30786 FLOAT ASSEMBLY 

INSPMAINT FWIPIOS S 

4 VIBRATIONffiU 

7322 FUELCONTROUCARBURETOR 

CARBURETOR LEAKING 

NONE 1993110900060 

CESSNA 172P; 

LYCpsaDp2J 

PREAlRMA4SrA 

17276974:- N66168 

L981489A 19/1383 

75009804 4!i3 

AFTER ERRATIC ENGINE 0F;ERATT0N S AT AND NEAR IDLE. THE CARBURETOR COMPLETELY FUXIDED DURING AN 

ATTEMPTED ENGINE START. FOUND CARBURETOR FLOAT/ASSEMBLY HAD LEADED FUEL INSIDE OP FLOAT. AD92-I8-16 

APPUES ONLY TO CONSOUDA1ED FUEL SYSTEM FLOATS WITO DATE CODE 10.91: THIS FLOAT APPEARS TO BE A 

PRECKlON AIRMOTTVE DATED 7-90. AN OVERHAULED CARBURETOR WAS INSTALLED AND RETURNED TO SERVICE. 

HEAT BOX 

OTHER 

CARBURETOR BUTTERFLY LOOSE CESSNA 172P 

NONE . 1993120900029 

17276886 N66786 

INSP/MAINT OTHER NONE . 1993120900029 11/1103 

. 8 2929 " 

7160 AIR INTAKE rACETMA4SPA 0 . 

BUTTERFLY VALVE FOR CARBURETOR HEAT WAS EXTREMELY LOOSE ON SHAFT (ABOUT TO FALL OFF). TOE TWO RIVETS. 

THAT HOLD TOE BUTTERFLY VALVE TO THE SHAFT WERE WORN THROUGH ABOUT TWO-THIRDS OF THE DIAMETER. 

CARBURETOR TUBE 

OTOER 

ACCEL PUMP LO<>SE .CESSl<A172P 17276018- N5463& 

NOT OTOER UNSCHED 1995091600436 LYC()S20D2J RLI4966S9 08/1005 

4 •• 0 

7322 FUELCONTROUCARBURETOR FACBrMA4SPA CK49853 1715 

RPM COULD IK)T BE REDUCED BELOW 2,000 RPM IN-FTJGHT, NECESSITATTNG POWER-OFF LANDING.. Ih^PECTKlN . 

REVEALED TOE CARBURETOR ACCELERATOR PUMP DISCHARGE TUBE HAD COME LOOSE AND LODCE D IN THE THROTTIJE 

VALVE PREVENTTNO FULL CLOSURE OFTHROTTLE. TOE OVERHAUL MANUALSPECIFTES THE TUB E IS HEU> IN PIACE 

WITO LOCTTTE ONLY. SUBMITTER RECOMMENDS REDESIGN SO TOE TUBE IS MECHANICALLY HELD IN PLACE OR ELSE A 

REGULAR INSPECTION INTERVALTD DETERMINE IF THE TUBE IS LOOSE. ENGINE TT. 3,882 HOURSJ ENGINE TSOH: UI 4 

'HOURS . • -• ' 

233616 VALVE CARBURETOR CRACKED 

INSPMAINT OTOER NONE 19980926002(R 

4 MOGR 

7322 FUELCONTROUCARBURETOR 

CESSNA 172P 

LYCO320D2J 

FACET MA4SF:A 

I727B917 N604MA 

LI266639A O6ni308 

..4784-

CK8I8043 731 

WHILE REPUCING FLOAT AND LEVER ASSY, FOUND RUBBER TIP OF FLOAT VALVE CRACKED AND DETERIORATED. 

REPLACED UNTT, 

• • • •'.•.•.-. . 

MA4SPA CARBURETOR ENGINE MALFUNCnONED CESSNA 172P l7r»67 8 N660S8 

NOT OTOER OTHER 1999062600031 LYCb326D2J LI50li39A 060309 

4 ••'••; ' 289' •. 

7322 FUELCONTROUCARBURETOR DC 322«6 0 

ENGINE WOULD NOT SHUT OFF WITH MDCTURE CONTROL FOUND (ViRBURETOR BO>VL LOOSE, BliyMOUWTiNC BQLT8 

STTIX HAD L()CK TABS IN PLACE. BOLTS APPEARED TO BE IX>0SE IN TOREADS IN BOWL NEED TO HAVE A LC)bk AT PAM 

MANUPACTURINC PROCEbURES. 

] Printed Aprl02,IM 

.' PagB33 

~- '• Anairsafety.com Product '• ~ 

Prepared From Officiol FAA Records By: 

Air Dat a Researc h 

9865 lower Vleiw, Helolesw Texas 78023 

210-695-2304 - Fox 210-695.2301 frifoitoksalety.com - www.ohotetyxom 

Copyright 1999,2004 Afr Data fteseareh 

. AIRigMs Reserved 

l A ^ 
r^. ' 

PortN* 

Stage Opns 

Severily 

ATA Cod* 

Remortu 

PortNorae 

Nohire d Condi 

Nature dCond 2 

ATA Texl 

Port locoHon 

Prec Proc 1 

PiecProc2. 

, 

PortCondHion 

RplCMNo. 

Operdor 

Acll /MIr/Md 

EngMh/Md 

Prop MIr/Md 

CmplMt/Md 

AcilSN 

togSN 

PropSN 

CmpI SN 

AcHRegNo. 

DRHcdIyDqte ' 

Totdlbne 

Tknc Since O/H 

VBAllO - WASHER BODY TO LOOSENS CESSNA 177 17700710 N3410T 

JJOT OTOER NONE 1987011400O06 LYCO320E2D 11/1706 

4 • • . 0 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 80 

/UX FOUR SCREWS ON THROTTLE BODY TO BOWL WERE LOOSE. SUBMITTER REUEVES LOCK TAB WASHER. SUPPUED BY. 

MARVEL SCHEBLER. TO BE INSUFFICIENT AS JT ALLOWS SCREW TO TURN .25 TURN BACK AFTER TTGHTENING /VND 

LOCKING. REPLACED SCREWS WITO DRILLED TYPE AND SAFETY WIRES. • " 

8122219 CONTROL CABLE THROTTLE CRACKED CESSNA 177 17700342 m942X 

iNSP/MAlNT OTHER NONE. 1996072800318 <y7/13S5 

4 1413 

7603 POWERLEVER FACET MA4SPA A1212310 0 

DURINd A SCHEDULED INSPECTION. FOUND TOROTTLE CABLE BENT AND CRACKED AT THE BEND LOCATED AT TOE 

TOREADED EN D WHERSTH E ROD END'ATTACHBS TO TOE C:ABL& IT APPEARED WHEN THE TOROTTLE HIT ITS STOP. THE 

TORQTILE CABLE CONTINUED TO BE PUSHED- THE CABLE HADTO BE REPLACED WHICH IS VERY COSTLY. 

3232 SHAFTFLOAT CARBBOWL MFGWFtONG CESSNA177B 17701790 N3411 

INSP/MAINT INADEQUATE Q NONE 1981100100062 LYC OS20D3G 916989A 

4 • ' '• 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 13641 0 

AT CAKB OVERHAUL SHAFT-FLOAT LEVER IN REPAIR KIT 286-1690 WAS FOUND CRIMPED ON SAME SIDB AS COTTBR PIN 

HpLE. • . ' . 

CUMB ENGINE STOPP UNSCHED 

4 

7322 FUELCONTROUCARBURETOR 

ENG QUIT AFTER T/0. CARB REPALCED. ENG RAN OK. 

INOP 

1986072600047 

VARGA 2150AMORISY 

LYC O320A2C 

SNSNCH 74DM 

FACET MA4SPA 

VAC16079 N8364J 

LR9I2727A 

A486t6 1082 

CK713649 1082 

INLET CAP 

FLUID LOSS 

CABURETOR 

NIJNE 

CRACKED 

1993092800040 

VARGA 21&0AMORISY 

LYCO320A2C 

VAC11978 N8273J 

INSP/MAINT FLUIDLOSS NC)NE 1993092800040 . LYCO320A2C 08/0103 

4- ' •• 765 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CK510447 . 0 

DURING ANNUAL INSPECTION. FOUND HEAVY STAINING AND WETNESS ON CAP. REMOVED CAP AND CLEANED WTTH 

LACQUER THINNER. FOUND 2 SMALL CRACKS ON CAP FLANGE THAT EXTENDED BEYOND RADIUS AND INTO BOWL PART 

OF CAP, APPROXIMATE LENGTH OF CRACKS .1250 INCH. REPLACED CAP. GASKET AND LOCK TAB WASHERS FOR THE TWO 

ATTACHED SCREWS. SUBMITTER STATED POSSIBLE CAUSE WAS OVERTORQUEING SCREWS PREVIOUSLY TO STpP FUEL 

isEEPAGE. , • • -. . - . , • . • 

VALVE FLOAT BOWL STUCK OPEN BLANCA 7GCAA 36178 N2666Z 

NOT WARNING INDI NONE 1982011400073 LYC0320/UD L4775227A 

V ' .• . " 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA A4020603 '.. 0 

THE FLOAT VALVE IN CARB STUCK OPEN CAUSING EXTREMELY RICH MIXTURE AND isSEVERE LOSS OFPOWER. 

INSPMAINT FLinDLOSS 

4 : • 

- . 

NONE 

7322 FUELCONTROUCARBURETOR 

LEAKING 

1986112500184 

BBAVIA 7GCAA 

LYC 0320/ 

FACET MA4SPA 

FUEL LEAKING OUT OF CARB COVERED T-HANGAR FLOOR. AC USING AUTO GAS. 

A30759 FLOAT 

INSP/MAlNT OTHER 

4 

NONE 

7322 FUELCONTROUCARBURErTOR 

SIMILAR TO PROBLEM DESCRIBED ALERTS. 

HEAVY 

1984056700042 

BBAVIA 7GCBC 

LYCO320A2D 

SNSNOI 74DM 

FACET MA4SPA 

.34177 

79SW 

L3969227A 

A3817984 

N4213Y 

249 

249 

N8S51V 

itei 

1521 

Printed Apritos,04 ' • • • '. ^11 alrsafety.com Produc t ~~ 

Page 34 Prepared Fronr< Officiol FAA Records By: 

Air Data Research 

9865 Tower View. Flelotes. Texos 78023 

210-695-2204-Fox 210-695-23bl frilo9afrsotely.com.-wrww.afrsalety.com 

Copyright 1999,2004 Afr Data Researeh 

Al RigMs Resened 

\^^. 
r 

PortNoL 

Stage Opr«' 

Sevedh/ 

ATA Cod* 

Remarics 

INSP/MAINT 

rOft NOHM 

Ndure dCond l 

Nature dC^n d 2 

ATATejd 

LEVER 

OTHER 

Partlocdtan 

PrecProc 1 

Prec Proc 2 

, 

MIX CONTROL 

NONE 

PortCondMon 

RplCMNo. 

Operdor , 

MISDRILLED 

1980080400063 

Acll Mtr/Md 

EngMli/Md 

PropMb/Md 

Cmpt Mfr/Md 

AMTRBD.BEDEBD4 

LYCO320A2B 

AdISN AcHRegNo. 

fcngSt|l MHciiliyDd* 

PropSN. lotoiTIrii* 

Cmpt SN Tim* She* O/H 

I 

t 

681 NlSTFJ 

4 • • . •. 0 -

7322 FUELCONTROUCARBURErTOR M/VRVELSCHEB MA4SPA A38JW45 0 

ENG VyOUU) RUN IN IDLE CUT OFF FOUND HOLE IN MIX (XINIROL LEVER MISDRILLED 

13(» . N27PM 

oi/02S8 

» 

.' 0 ' 

ENGINE BAN ROUGH AND WANTED TO QUIT AT LOWER POWER SETTINGS. POST INCIDENT INSPECTION WITO THROTTLE 

OFF AND MDCTURE IDLE CUT4)FF. BOOST PUMP ON, FUEL POURED OUT OF CARBURETOR, CARBURETOR SENT BACK TO 

CONSOUDATED. SUBMITTER SUSPECTED FLOAT PROBLEM. ' • •.•"•• • . , 

30762 FLCJA"'' BOVIL J HANGS-UP MOONEY M20C 1241 N3604H 

CRUISE EFKJINESTOPP NONE lti78Q81000085 LYC OSOOAIO M400936A 

•W • ' ' • 936. 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA G519W6 936 

FLO{»ING THRU NOZZLE TRACED TO FLOAT.TO FLOAT SHAFT HAVING EXCESSIVE CLEARANCE. FLOATCOUU) HANG ON 

BOWLSIDES . • ' . 

MA4SPA 

NOT • 

4 

7322 

CARBURETOR ENGINE 

FLUID LOSS NONE 

PARTIAL RPMn»WR 

FUEL CONTROL«ARBURETOR 

FLOODS 

1998022600468 

AMTRLONGEZ 

LYC 0320* 

SCREWS BODY HALVES LOOSE .PIPER PAIS I860Z4 N7869D 

CRUISE VIBRATIONffiU NONE 1982042000079 LYC 0320/ Lt698227A 

4 AFFECTSYSTE . 0 . 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MA4SPA . 0 

ENG HOUGH DUE TO LOOSE SCREWS HOLDING C^ARB BODY HALVES TOGETOER. SAFETY WIRE STILL INSTALLED. 

( • ) 

.29193 VALVE FLOAT CUP 

CUMB AFFECTSYSTE UNSCHED 

4 ENGINE STOPP 

7322 FUELCONTROUCARBURETOR 

SEPARATED PIPER PA18 186024 N7869D 

1982042000080 LYC 0320/ L169S227A 

•.; . Q 

MARVELSCH^ MA4SPA 401594 ^ » 

ENG QUIT DURING CUMB. FOUND FLOAT VALVE SEPARATED FROM CUP. 

SCREWS BODYTO LOOSE PIPER PAIS 188917 N7056 

INSP/MAINT FLUIDLOSS NONE 1985041800006 LYC0320B2B L2e76627A 

•'4 '"O'. 

7322 FUELCONTROUCARBURETOR FACET MA4Si»A 1796 327 

FUEL LEAK AT CARBURETOR. FOUND BOWL MOUNTING SCREWS LOOSE. LOCK TABS NOT SECURING SCREWS. 8R0 

OCCURRENCE IN fLEET10367832 

NOT 

4 

7322 : 

CARBURETOR ENGINE 

VIBRATIONffiU OTOER 

PARTIALRPM/ 

FUEL CONTROUCARBURETOR 

DEFECTIVE . 

1994042000618 

PIPER PAIS 

LYCO320B2B 

FACETMA4SPA 

187709001 N83404 

L11474S9A O3«104 

... 0 

242 

AS THE OUTSIDE TEMPERATURE GOT CXILDER ON THE UFt>Eft END OF THE TOROTTLE MOVEMENT (2800 RPM • 2500 RPMX 

THERE WAS A FLAT SPOT-0NE41ALF TO IINCHOFTHROTTLEMOVEMENTWITONOBNGINERESPONSE. TOECOLDER 

THE TEMPS - <BELOW MINUS 10 DEC;REE S FAHRENHEIT), THE ENGJNE STARTED TO RUN ROUGH ATTHAT TTTRQTTIE 

POSITION - AT MINU S 20 DEGREE S T O SO DEGREE S FAHRENHEIT , TH E ENGIN E RA N TO O ROUQ H FO R SAF E FUGHT . TOE 

CARBURETOR WAS CHECKED BY B & S AIRCmAFT. PARTS & ACCESSORIES. PARTS REPLACED. SAME SYMT0M8. THE 

CARBURETOR CHECKED BY PREaSION AIRMOTIVE, SAME RESULTS. SUSPBCTTOE UNEVEN CASE HALFMATING SURFACE 

IN VENTURI AREA CAUSED FUELTO DROP OUT OF COLD TEMPS DUE TO TURBULENCE AT THAT AREA. . . • 

A30628 

INSP/MAINT 

4 

7322 

FLOATfl.EVHl CARBBOWL 

OTOER NONE 

FUEL (XINTROUCARBURETOR 

BROKEN 

1981122300030. 

PIPERPA18I50 

LYCO320A2B 

MARVELSCHEB 

187683 

L1196027 

3990949 

N3839Z 

0 

0 

THE FLOAT ANDLEVER ASSEMBLY PN A30-628 SEPARATED AT LEVER. PARTS FELL INTO BOTTOM OF BOW L 

An airsafety.com Product ^ 

Prepof ed From Cjfficto/ FAA Records By: 

Air Dat a Researc h 

9865 Tower View, tteiotes. lexos 78023 

210-695-2204 - Fox 21.0-695-2301 frilo9afrsofety.com - www.ossatety.com 

Pikrini April 02.04 

Page36 

Copyright 1999,2004 Afr Data Reheard) 

/klRlgMsReservwl 

.O^ 
r<") 

C) 

PartNa 

StogeOpns 

Seveity 

ATA Code 

RenrMslcs 

Pari Nome i 

Nature d COnd 1 

Nature d Cond 2 

ATA Text 

Portlocolon 

PrecProc 1 

Prec Proc 2 . 

PortCondMon 

RplCMNo. 

C>perdor 

Acll MIr/Md 

EngMlr/Md 

PropMfr/AAd 

CmplMk/Md 

AdISN 

EngSN 

PropSN 

CmptSN 

A d l R*fl No. 

Dancdly.Oale 

TddTtm* 

Tim* Sine* O/H 

666916 . *LOAT DEFECTIVE PIPER PA181&0 188498 N7049 

. CUMB OTHER NONE 1984081400141 LYCO320B2B L2333927A 

4 . 20 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 4026222 20 

CARB KIT NO. 666916 INSTALLED ENG LOST 160«00 RPM DURING CUMB. LEVEL FUGHT ENG NORMAL FLOAT TRAVEL 

INSUFFICIENT. . .•' .- ^ 

666916 FLOAT . DEFECTIVE PIPER PA18150 188917 N7056 

UNKNOWN FLUIDLOSS NONE 1984081400142 LYCO320B2B L2070627A 

' 4 ' . • 1 5 . .• 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 399623. 15 

CARB FLOAT Ki t 666916 INSTALLED. ENG RUNS ROUGH AT LOW KPM AND FUEL WAS LEAKING FROM CARB AIR BQX. FLOAT 

TRAVEL INSOF F ICIENT. .^^ • • ' . 

BUTTERFLY HOUSING BINDING . PIPER PA18160 187809078 N83326 

INSP/MAINT OTOER OTHER 1986101400068 LYCO320A2B RL1827727 10/0606 

4 PARTIALRPM/ 0 

7322. . FUEL(X)NTROUCARBURETOR FACETMA4SPA- 10367832 10 

THE ENGINE WAS REDUCED TO JDLE FOR LANDING AND THROTTLE COULD NOT BE REAPPLIED FOR ADDITIONAL POWER. 

EMEFiGENCY LANDING WAS MADE. THE CARBURETOR WAS REMOVED AND SENT TO LY(X>MING FOR WARRAhlTY 

REPLACEMENT. SUBMITTER SUSPE(?TS STICKING OF TOE THROTTLE DUE TO BINDING OF THE BUTTERFLY /VND SHAFT 

AGAINST TOE HOUSING. TOIS PROBLEM HAS BEEN FOUND ON TWO OTHER AIRCRAFT WITH LOW TIME OF THE 

CARBURETOR. ] ^ 

BUTTERFLY HOUSING BINDING P1PERPA18150 188109084 N912e3 

INSPMAINT OTHER OTHER 198610140007E LYC O320A2B RL182^27 10^)606 

4 PARTIALRPM/ 0 

7322 FUELCONTROUC/VRBURETOR FACET MA4SPA 4013352 5 

TINABLE TO REAPPLY POWER DURING APPROACH. THE CARBURETOR WAS RECONDITIONED BY LYCOMING IN JULY. IT HAD 

TO BE RETURNEDF OR WARRANTY REPLACEMENT. REPAIR STATION NR 1108. ' 

BUTTERFLY HOUSING BINDING PIPERPA18150 N91187 

APPROACH OTHE R UNSCHE D 1986lbl6000a6 LYC0320A2 B RU964127 09/1206 

4 PARTIAL RPM/ . 0 

7322 FlJEL CONTROUCARBURETOR FACET MA4SPA A3817618. 3 i 

AlRCaiAFT CRASHED DUE TO THR()TTLE BEING STUCK AT LOWER POWER SETTING. 

MALFUNCTTON PIPERPA18150 ]881090i84 N91203. 

NOT OTHER NONE 1986110500080 LYCO320/V2B RL1827527 09/2606 

4 • . • • . • ' 6 • 

7322 FUELCONTROUCARBURETOR FACETMA4SPA 4013352 6 

DEC 1986. UNABLE TO REAPPLY POWER AFTER REDUCTION OF POWER. EMERGENCY LANDING WAS MADE. TOE 

CARBURETOR WAS REPLACED AN D SENT TO LYCOMING FOR WARRANTY REPLACEME^ . CARBURETOR WAS LYCOMING 

RECQNDtTTONED BY FAA APPROVED REPAIR STATION NR 11 08. JULY 1985. . 

. CTLLOCKED P1PERPA18150 187609078 N83326 

NOT OTOER NONE 1986110600081 LYCO320A2B . RL1827727 <n/2606 

4 - . •• • • • • ' -' :io' ' •• 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 10367882. 10 

MAYS. 1986, ENGINE REDUCED TO IDLE Ft)RLANDim AND COULD NOT REAPPLY THROTTLE FOR ADDTTIONAL POWER. 

EMERGENCY LAIffiMNG WAS MADE. CO\RBURETX>R WAS lU^PLACED AND SENT TO LYCOMING FOR WARRANTY 

REPLACEMENT.: 

CRUISE 

4 

7322 

CARBURETOR MATING 

VIBRATIONffiU OTHER 

PARTTALRIW 

FUEL CONTROUCARBURETOR 

BOLTS LOOSE 

I989102400O54 

PIPER PA18160 

LYC O320A2B 

FACET MA4SPA 

187609078 Na3312 

L4266627A 09/1409 

900 

A3818245 900 

ENGINE INTERMITTENT ROUCUINESS AT MID TO HIGH POWER SETTINGS AND WORSENED WITH CARBURETOR HEAT 

APPUED- INSPECrioN REVEALED THAT CARBURETOR PARTING SURFACE BOLTS WERE LOOSE. TOE LOCXis WERESTTLL 

INTACT. TOESE SCREWS SHOULD BE REPLACED WITH NEW SCREWS THAT CAN BE SAFETTED AS THE EARUERS MODELS. 

/ Printed April 02.04 V~ ' '' An alrsafety.com Product "~^ Copyright 1999,2004 Afr Data Research 

Page37.' Prepored From CXrScfc]/FAA Records By: Al Righlit Reserved 

Air Data Rese^rcii 

9865 Tovi«r View, Helotes. Texas 78023 

. 210-695-2204-Fax210-695-2301 in(o©ofr5bfely.com-www.ofrsolety.com T o ' 
o 

PiviNo. 

Stage Opiii 

Severity 

ATA Code 

Remarks 

AT 60 HOUR INTERVALS. 

Port Nome 

NoluredCondl 

Noiw* d Cond 2 

ATA Text 

Port location ' PortCondMon 

PrecPloct RplCMNo. 

Pi«c Proc 2 Operdor 

AdtlMlr/Md 

Eng Mtr/Md 

PiopiWr/Md 

CmptlAk/Md 

AdISN . AdlRegNo. 

EngSN DRHculty Dote 

Prop S»4 TotdUn^ 

CmplSN; Urn*Sbic*O/H 

NOZZLE ACCELERTR ATTACH TO BROKEN 

INSP/MAINT VIBRATIONffiU NONE 1976100800040 

W 

.7322 FUEL CONIHOUCARBURETO R 

PIPER PA23 

LYC 0540/ 

629 N2046P 

3600 

MARVELSCHEB MA45PA 3988K12 llOQ 

CUMB 

4 

7822 

OTHER 

FINGER 

NONE 

CLOGGED 

1983120800076 

FUEL CONTROUCARBURETOR 

PIPER PA23 

LYC0320A1A 

FACET MA4SPA 

- LT EN<; SURGED IN CUUB. FOUNT LT CARB FINOER SCREEN <^X>GGED. 

23467 

L649927 

K1664N' 

231311 

L932S9 

• • • 

4001464 

NIOSHD 

^928 

5928 

N3356P 

2440 

2440' 

SCREWS 

FLUIDLOSS 

FLOAT BOWL LOOSE 

. OTHER ~ 1979083000060 

PIPER PA23160 

CUMB LYC(»20B1A 

• 4 . • . • . • . . - • 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 

ENG LOST POWER AFTER T-O FOUND SCREWS IN CARB FLOAT BOWL LOOSE 

C) 

307E9 . FLOAT INTERNAL OUTOFADJ PIPERPA231tO. 231W8 N4204P 

INSP/MAINT FLUIDLOSS NONE 198006060006D LYCO320B3B 

4 ' . 0 . . 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SFAA88i8287". 0 , 

NEW CARBURETOR FOUND TO HAVE FLOAT LEVEL OUT OF ADJUSTMENT AUJOWIN O FUELT O DISC HARGE ON HANGAR 

FLOOR. • . • ' • . • • - " . • . • . . • :• 

MA4SPA , TUBE CARB 

INSP/MAINT OTOER NONE 

4 " . 

7822 FUELCONTROUCARBURETOR 

DAMAGED 

2002932800182 

PIPER P/U31 ^ 

LYC 0320* 

231277 N3326P . 

osnixe 

: 'o. 

0 

ENGINE WILL NOT START, FOUND ACCELERATING PUMP DISCHARGE TUBE IN ABt BOX. REMOVE CARBURETOR FOR 

OVERHAUL •:.- • •' 

FLOAT 

OTOER 

FLOAT BOWL SINKS 

NONE 1976040SOOOS7 

PIPER PA26 

INSPMAINT LYCOSZQ/ 

-W . 

7822 FUELCONTROUCARBURETOR ' MARVELSCHEB MA4SPA 

CARB RICH ALL POWER SETTINGS. FLOAT WILL NOT FLOAT WHEN SUBMERGED 

460 

460 

BOWL 

FLUIDLOSS 

CARB 

INSP/MAINT NONE 

4 ' 

•7322 FUELCONTROUCARBURETOR 

FOUNbCARBBOWLSCREWSLOOSE 

SEPARATED 

1983080100064 

PIPER PA28/ 

LYCO320E3P 

MARVELSCHEB MA4SPA 

287525133 N32982 

0 

BOWL DRAIN HARD UNSCREW PIPERPA28140 

NONE 1976030600092 LYCO320/ 

9934 PLUG 

INSPMAINT OTOER 

W • 

7 3 ^ FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 

AIL NEW CARBS COME WTTH ALLEN HEAD DRAIN PLUG THAT IS NEXT.TO IMPOSSIBLE TO REMO VE; 

7625(164 N32419 

0 

ARM 

INSP/MAINT OTOER NONE. 

W 

7322 FUELCONTROUCARBURETOR 

WRONG TYPE PIPER PA28140 287326461 Na|S702 

1976071700035 LYC O320E3D L3393627A 

..''• • 1603. 

MARVELSCHEB MA4SPA AlZi24Sl 1503 

FND ARM TO BE THE MILLED FLATTNSTEA D OF TOE SPOT-PACED TYPE JIEF AD72-6-5,PAR A2 

' Printsd April 02,04 

PageSg ' 

• • .. • An airsafety.com Product • 

Prepc>t6d Frorn Officiol FAA Reco/ds By: 

Air Data Research 

9865 Tower View. Helotes. Texas 76023 

210-695-2204 - Fox 210-695-2301 frilo9airsatety.com - www.airsalely.com 

Copyright 1999,3004 AJr Data Rese«reh 

AIRigMs Resened 

>io'-
tC) 

r •) 

Pari No. ' Port Nome Porilocottan. 

Sloge Opiii Nature d Cond 1 - Prec Proc 1 

SeveiVy Nolure d Cond 2 Prec Proc 2 

AIA code ATA Text 

Remorics 

DRAIN PLUG 

INSPMAINT OTOER NONE 

W 

7322 FUELCONTROUCARBURETPR 

PortCondMon 

Rpt CM No. 

Operdor 

SEIZED 

19760225000S6 . 

Adl MIr/Md 

EngMlr/Md 

PropMlr/Md 

CmplMfc/Md 

PIPER PA28I40 

LYCQ320E2D 

AcftSN 

EngSN 

PropSN 

CmptSN 

28712(i463 

L2948627A 

MARVELSCHEB MA4SPA BL104839 

AcH Res No. 

OmcutyDol* 

Tddlhne 

Tk»e$b)ceO/H 

N3349T 

0 

0 

CARBURETOR DRAIN PLUG IS SEIZED CAN NOT BE REMOVED USING NORMAL METHODS WITO ALL EN VntENCH 

PARTC 

CRUISE OTHER NONE 

W 

7322 FUELCONTROUCARBURETOR 

LOOSE 

1976040500066 

PIPER PA28140 

LYC0320E2B 

MARVElfCHEB MA4SPA 

ENG ROUGH DUE TO CARB BEING LOOSE ATTHE PARTING SURFACE GASKET. 

233616. NEEDLE VALVE PLASTIC TTP 

TAKEOFF VIBRAkTIONmU UNSCHED 

W OTHER. 

7322 FUELCONTROUCARBURETOR 

DISTORTED 

I976122I00031 

PIPERPA2B140 

LVC0320E3D 

MARVELSCHEB MA4SPA 

287G260I2 

U25S727 

287625224 

U564127A 

.N4238X . 

847 

347 

N6176J 

403 

40S 

ENG BECAME ROUGH & LOST POWERJNVESTTGATION REVEALED H^ASTTICTIP OF NEEDLE VALVE blSTORTEDXNG 

FIJOODEDJ'REVFIRE 

30760 FLOAT 

UNKNOWN OTHER OTHER 

W 

7322 FUELCONTROUCARBURETOR 

PART OF CARB FLOAT FOUND BROKEN OFF 

BROKEN 

19770S27OOO41 

PIPER PA28140 

LYC0320E2A 

MARVELSCHEB MA4SPA 

287128028 

L28S1427A 

3991363 

2600 

60O 

CUP 

ENGINE STOPP 

FLOAT 

NONE 

WORN 

1978060400054 

PIPER PA28140 

LYCO320E2A 

29193 287425436 N44653 

CRUISE 

W 0 

7322 .FUELC0NTR0L«:ARBURETOR MARVELS(»IEB MA4SPA o 

DURING FLTE^G QUIT POUND CUP WHICH ATTACHES TO FLOAT AND NEEDLE VALVE WORN WOUL D NOT LIFT VALVE 

FROMCL()SEDP0S \ 

10367832 ARM 

INSP/MAINT OTHER 

SHAFT LOOSE 

NONE 1979031900036 

7322 FUELCONTROUCARBiURETOR 

FOUND TOROTTLE ARM LOOSE ON THE SHAFT AD 72-06-06 PCW 

30759 FLOAT CARBBOWL SUNK 

NOT VIBRATIONffiU NONE 19(130118.00267 

4 

7322 FUELCONTROUCARBURETOR 

ENG RAN ROWJWFOUND CARB FLOAT SUNK. 

30769 FLOAT 

INSP/MAINT OTHER 

CARBURETOR TOO HEAV 

NONE 1983012600007 

PIPERPA28140 

LYCO320E2A 

FACET MA4SPA 

PIPERPA28140 

LYCO320ESD 

MARVELSCHEB 

:PIPERPA28140 

. LYCOS20E3D 

2826610 

A221405% 

2820806 

L4173327A 

2012438 

1.<I29I727A 

7322 FUELCONTROUCARBURETOR . MARVF3.SCHEBMA4SPA BL269760 

DURING CARBURETOR OVERHAUL FOUND FLOAT TO WEIGH 22.22 GRAMS. MAXIMUM WEIGHT IS 20 GRAMS: 

A4CMS3 VENTURI 

INSP/M/UNT OTOER 

WARPED 

OTHER 1983082500073 

7322 FUELCiONTROUGARBURETOR 

PIPER PA28I40 

LYC O320E2A 

FACET MA4SPA 

2825649 

L243S827A 

A2I13S68 

N8292N 

0-

N6697W 

202 

202 . 

0 

NS804N 

0 

POSSIBLY RESULT OF HOT START AND SMALL CARB FIRE: 

( r Printed April 02.04 ' """^ An airsafetv.com Product ' 

Page40 Prepared From OfTiciol FAA Records fiy: 

A i r Dat a ftesearc h 

9865 Tovwer View, HelQtes. Texas 78023 

210-695-2204-Fox 210-695-2»l inloGofrsofety.com-www.oirsolety.com 

Copyright 1999,2004 Afr Data fteseardi 

AIRigMs Resened 
o 

Port No. Fort Nome 

Sloge Opns. Nolure d Cond I 

Severity Nature of Coitd 2 

AIA Cod* AU tm) 

Remarks • ' 

Port locolon Port CondMon 

PrecPracl RplCMNo. 

Prec Proc 2 . Operdor 

Acll/Mtr/Md 

EngMir/Md 

Prop Mtr/Md 

Crr«itMk/Md 

AcilSN AcHRegNo. . 

EngSN DiBcdlyDql* 

PropSN TotdThne 

Cmpl M lime Skice O/H 

46A3S . PRIMARY VENTURI DISTORTED PIPER PA28161 N9QA 

UNKNOftTN OTHER OTHER 197604220003 LYCO820E3D 

W . 918 

7322 FUELCONTTIOUCARBURETOR MARVELSCHEB MA4SPA BL2011631 918 

PRIMARY VENTURI DISTORTED AS TOOUGH IT WAS SUBJECT TO SEVERE HEAT.HOWEVER INDICA TION OF INTAKE FIRS 

A2S36tS NEEDLE-SEAT 

INSPMAINT OTHER NONE 

W ' 

7322 FUELCONTROUCARBURETOR 

100 HR INISP FOUND NEEDLE VALVE & SEATWORN 

WORN PIPERPA2815i 287416406 N42927 

1976122900033 LYCO320E3D L3769427A 

1300 

MARVELSCHEB MA4SPA BL20II446 1300 

A46A33 VENTURI 

INSPMAINT OTHQl NONE 

W 

7322 FUELCONTROUCARBURETOR 

MELTED PIPERPA28I61 287416406 N429i7 

1976122900034 LYCO320E3D. L3769427A 

• • '• 1300. 

. MARVELSCHEB MA4SPA BL26n44< 1800 

ENG INTBRMlTTENr ROUGH RUNNING IN LEVEL FLT. 100 HR INSP FOUND VENTURI SEVERLY BURNED & MELTEDJIO 

HEAV* BURN HI-BX 

47813 DISCHARGETUBE 

INSP/MAINT OTHER NONE 

W . 

7322 FUEL(X>NTROUCARBURETOR 

100 HR.INSP POUND DISCHARGE TUBE SOOTED 

SOOTED PIPER PA281&1 287416406 N42927 

1976122900036 LYCO320E3D L3769427A 

1800 

MARVELSCHEB MA4SPA BL2011446 1300 

; ( ) 

46A33 PRIMVENTUR I CARBTHROA T DISTORTED PIFERPA28161 7516283 N32988 

TAXI/GRND OTHER NONE 1978122000036 LYCO320E3D L4076927A 

4 - 2197 

7322 . FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA BL201I799i 2197 

ENG CAUGHT FIRE DURING START NO VISIBLE DAMAGE OPEATED SEVERAL HRS ENG BECAME RO UGH VENTURI 

DAMAQEO 

TO OIL SUMP THREE MISSING 

NONE 1979021200061 

PIPERPA281S1 

LYCO320E3D 

MS271ftll6 PALNUT&NU T 

INSPMAINT OTHER 

4 '. . 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 

DURING 100 HOUR 3 OF TOE 4 NUTS SECURING THE CARB TO THE OILSUKfl> MISSING. 

287715171 

U646627A 

FLOAT BOWL LOOSE PIPER PA28151 

INSP/MAINT OTOER NONE 1979071200073 .LYCO320E3D 

4 . , 

1V22 FUELCONTROUCARBURETOR FACBTMA4SPA 

INSP FOUND MOVEMENT AT MOUNTING FACE OF FLOTBOWL 

N2FOR 

O 

0 

30769 FLOAT CARB DEFECTIVE P1PERPA28161 

UNKNOWN VIBRATIONffiU OTHER 1979101600068 LYCO320E3O 

4 • - • 

7322 : FUELCONTROUCARBURETOR FACET MA4SPA 

ENG R/m ROUGH WHEN TOROTTLED BA(3{ FOUND FLOAT DEFECTIVE 1 SIDE WOULD SINK 

287516267 N32S46 

2600 

2600 

FLOAT 

NOT . ENGINE STOPP 

.4 

.7322 FUELCONTROUCARBURETOR 

FLOAT FOUND STICKING CAUSING ENGINE TO STOP. 

CARBURETOR STICKING 

OTHER 1983020100086 

PIPER PA28151 287516258 N32847 

MARVELSCHEB MA4SPA EL2011261 

X. j Printed Apriio2.04 ~ '• "^ Anairsafety.com Product 

Page 43 ' Prepared From Officiol FAA Records By: 

Air Data Research 

9865 Tower View, Hekstes. Texas 78023 

210-695-2204 - Fox 210-695-2301 (il0eairs9tety.com - wvinv.airsolety.ccxn 

GopyrigM 1999,2004 Afr Data Research 

Al Rights ftesarved. 

..o>-
rC) 

PortNo. PortNorrte Portlocolon. PortCoiKiWon 

Stage Opns Nottire d Cbnid 1 Prec Proc 1 Rpt CM No. 

Severity' Nature d Cond 2 . Prec Proc 2 Operdor 

ATA Code ATA Text 

Remorkj 

BECOME ENLARGED, AND PREVENT PROPER TIGHTENING. 

AcHIMir/Md 

EngMlr/Md 

FropMir/Md 

CmplA«k/Md 

Acft SN AcH Reg No. 

EngSN OMcuHy Ode 

PropSN TotdTlme 

Cmpt SN Tbne Since O/H 

'n 

MIX CONT ARM 

ENGINE STOPP 

CARB 

UNSCHED 

CAME OFF 

1987072300018 

PIPER PA28160 

LYC O320A2B 

2878 N6069W 

06/1107 

3696 

165301 

CRUISE 

4 

7322 FUELCONTROUCARBURETOR FACET MA4SPA A41276 339 

TOEMIXCCBfTROL/UlMCAMEOFFOFSHAFTCAUSINGCARBTOGOTOIDLBeUTOFF. THE AX; MADE A POWER OFF 

LANDING ATA SMALL AIRFIELD WITO NO DAMAGE OR INJURIES BEING SUSTAINED. UPON INSPECTION FOR CAUSE, TOE 

ARM WAS FOUND ATTACHED TO CABLE BUT DANGUNG UNATTACHED FROM CARB. WTTNESS MARKS ONARM BUSHING 

AND SHAFT SHOW ONLY HALF OF GRIP LENGTO ENGAGED. ALSO, SUBMITTER WAS UNABLE TO LOCATE TENSION SPRING 

AND SAFETY CUP IN TOE Art:. SUBMITTER SUGGESTS INSP PROCEDURES INCLUDE A VISUAL OIECIC F(3R i>ROPER 

POSITION O F AR M /^N D SUFFICIENT ENGAGEMENT FOR RETENTION. • . 

10367832 CARBURETOR HALVES SEPARATED PIPERPA28160 28909 N6677W 

INSP/MAINT PARTTALRPM / NONE 1993112200186 LYC0320A2B 10/2908 

4 • • • 2867 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 0 

AIRCRAFT ENGINE NEEDED LEANING TO OBTAIN MAXIMUM RPM AT SEA LEVEL WOULD NOT SHUT DOWN CLEANLY AND 

COULD.NOT'BE ADJUSTED. AiTER INSPECTTON, CAHflURETX)JR WAS FOIIND TO BE SEPARATTNG 

LOWER HALVE S WHER E ATTACHED , SCREW S TTIAT HEL D HALVE S TOGETHE R WER E INSTALLE D WIT H QIUGINA L SAFET Y 

WIRE. BOTOOFTHEJIOLESSHOWEDSIGNS OF ELONGATIO N AND STRIPPING. SUBMITTBRANALYSI$ ISOLD AGE AND ° 

ALC>r OF XTBRATTON CAUSED PART TO FAIL RECOMMEND INSPECTnON OF CARBURETOR EVERY 100 HOURS AFTER 2,500 

HQURS OF TIME IN SERVICE.. NO SIGNS OF FUEL LEAKAGE NOTED. 

36540 

TAXI/GRND 

4 

7322 

FOUND EARS 

CRUISE 

7322 

CHECK VALVE WORN 

FLAME ENGINE 1978090700117 

SMOKE 

FUEL CONTROUCARBURETOR 

PIPER PA2ai61. 

LYGO320O3G 

MARVELSCHEB MA4SPA 

287816180 

CK48240 

N38522 

222 

222 

ON CK VALVE LOOSE & WORN CAUSING WEAR IN TOREADS CARB BOWL LEAKING FU EL CAUSING HRE 

FLOAT STUCK 

ENGINE STOPP OTHER 1979062600061 

FUELCONTROUCARBURETOR 

FLOAT STOCK FLOODING ENG, CUASING IN FLT FAILURE. 

194681 

INSP/MAINT 

7322 

PUMP PLUNGER ACCELERATO PLATING FLAKE 

OTHER NONE 1979071300072 

FUEL COFmiOUCARBURETOR 

PIPER PA28I61 

LYCOS20D3G 

FACET MA4SPA 

PIPER rA28161 

LYCP320D3G 

FACET MA4SPA 

INSP FOUND CARB ACCELERATOR PUMP PLUNGER PLATTNO FLAKING OFF 

16A107 

APPROACH 

4 -

7322 

GASKET cu t 

VIBRATIONffiU UNSCHED 19801003000-O 

INADEQUATEQ 

FUELCONTROUCARBURETOR 

PIPERPA28I6I 

LYC O320D3G 

287916063 

L855339A 

CK611628 

CK61137 

287916608 

L9t8439A 

MARVELSCHEB MA4SPA CK715461 

N22179 

90 

N2P0R 

250 

260 

-

N2884N 

798 

798 

ENG ROUGH + WOULD ONLY RUN ATIDLE SPEEDS.FOUND PIECE OF GASKET INSIDE CARB LODO ED IN P/N 47-828 NOZZLE. 

A233615 NEEDLE-f SEAT TIP OF GROOVED PIPERPA28r61 287816637 N36461 

TAXI/GRND FLAME NONE 1981070800077 LYC032t>D3G L840439A 

4 376 

7322 FUELCONTROUCARBURETOR MARVELS(31EBMA4SPA CK610381 376 

CARB FLOODED BEFORE START RESULTING IN COWL FIRE. CAUSE NEEDLE-f SEAT DID NOT CL OSE OF F FUEL 

: ( • ) Printed April 02, o4 ^~ ~ An airsafety.com Product ~ 

Ptrgt 45 Prepared From Offick^ FAA Records By: 

Air Data Research 

9865 Tower View. Helotes. Texas 78023 

210-695-2204^ Fox 210-695-2301 fr>tb©afr$olety .com - wwW.ofrsole1y.com 

CopyrigM 1399,2004 Afr Data ffeseaich 

Al RigMs Resjnved 

\e-

\.~-^ 
o 

< • ) 

l_ 

PortNo. 

StogeOpns 

Severity 

ATA Code 

Remorics 

INSP/MAINT 

4 

7322 

NO TEXT. 

- • : • 

CRUISE 

4 

7322 

Porit4ame 

NduredCond l 

Ndur* d Cond 2 

ATAI*xt 

SeUBWSffiOWL 

OTOER 

Port locolon 

Proc Proc 1 

Prec Proc 2 

NONE 

FUELCONTROUCARBURETOR 

WARNING INDI 

GASKET 

OTHER 

FUELCONTROUCARBURETOR 

PortCondMon 

Rp4 CM No. 

Operator 

LOOSE 

1982112300036 

LEAKING 

IJOS T FUE L PRESS IN FLT.POUND CARB GASKET SHRUNK SCREWS LOOSE 

AcH MIr/Md 

EngMlr//Md 

Prop MIr/Md 

Cmpt Mk/Md 

PIPER PA2816I 

LYCO320O8G 

MARVELSCHEB MA4SPA 

PIPERTA28161 

LYCO320D3G 

SNSNCH 74DM 

AdISN 

EngSN 

PropSN 

CmplSN 

287816680 

RL69703aA 

288216027 

LI140439A 

A50497 

MARVELSCHEB MA4SFA DC2698 

AcHRegNo.. . 

DMkdtyDd e 

Told nme 

RmeStnccO/H 

0 

713 

N8234D 

378 

S7(i 

I 

I 

DISCHARGETUBE 

OTHER 

VENTURI MISSING PIPER PA28161 287816206 N9886K 

INSP/MAINT OTOER NONE' 198308180007] LYC0320D3G L783539A 

4 '.•'• . . 2200 

73i2 • FUELtiONTBOUCARBURETOR FACET MA4SPA CK48178 200 

CARB REMOVED FOR REPAIR TO ACCXL PUMP SEAL FOUND DISCHARGE TOBE MISSD4G. AFPROX 20 HRS EARUER ENG WAS 

REPORTED FOR PWR LOSS. 

106136 

INSP/MAINT 

4 

7322 

CARB GUSHING FUEL 

INADEQUATEQ NONE 1983081800075 

FLIBDLOSS 

FUEL <X)NTROUCARBURETOR 

ON ENG START FUEL BEGAN GUSHING OUT OF CARB BASE. 

INSP/MAINT 

4 

7322 

SHAFT BUSHINGS GALLED 

OTOER NONE 1984091000034 

FUELCONTROUCARBURETOR 

PIPER PA2816I 

LYCO320D3G 

SNSNCH 74DM 

FACET MA4SPA 

P1PERPA28161 

LYC O320D3G 

SNSNCH 74DM 

FACET MA4SPA 

287916014. 

L1170689A 

AS0566 

CK1681 

287716243 

L744439A 

A44534 

CK47203 

THROTTLE WOULD NOT MOVE JOUND STEEL THROTTLE SHAFT HAD G AU ED IN TOE STEEL BUSHINGS. 

NS99A4 

0 

0 

N38317 " 

12SS 

17 

«669I5 FLOAT KIT NEEDLESEAT LEAKS PIPER PA28161 28816184 N8S60T 

TAXI/GRND FLUIDLOSS NONE 1984111600021 LYC 0320030 L10966S9A 

4 • • •• • 100 

7322 FUELCONTROUCARBURETOR FACET MA4SPA DC2617 100 

INSTALLEDFL0ATKrTPERSBAl-84A-AFTERlNSTALLATlONCAHBLEAKEDANDENGINE_HARDTOSHUrb0WN. . 

REINSTALLED KIT. 

666915 287816617 N36163 FLOAT SUNK PIPER PA28161 

INSPMAINT VIBRATIONffiU NjDNE 1986080100021 LYC<?320/ 

4 " . . • • 426 .• 

7822 FUELCONTROUCARBURETOR FACET MA4SPA A1911027 415 

. ENG BOUGH AT LWR RPM. LEANED MIXTURE * ENG SMOOTO. CARB HAD PROBLEM TYPE FLOAT. RPLCD WiTO METAL 

•FLOAT.' 

30766 

INSP/MAINT 

4 

7822 

FLOAT CARBURETOR FUEL1NSIDE 

FLAME NONE 1986072200018 

PARTTALRPM/ 

FUELCONTROUCARBURETOR 

PIPER PA28161 

LYC 0320/ 

FACET MA4SPA 

- 287816295 

' 

CK48938 

CARBURETOR CAUGHT ORE DURING ENGINE START. INVESTIGATION REVEALED FUEL INSIDEOF NEW TYPE 

CARBURETOR METAL FLOAT. 

105217 

CRUISE 

4 . . • • 

7322 

CARB FLOODING 

VIBRATIONffiU UNSCHED 1969012400046 

PARTIALRPM/ 

FUEL CONTROUCARBURETOR 

PIPER PA28161 

LYC O320D3G 

FACET MA4SPA 

288316069 

Ll^9O0S9A 

DO0136 

N2699M -

07/1606 . 

300 

300 

N429SV 

12AI08 

• 0 

832 

PILOT REPORT ENGINE RUNNING ROUGH. MADE LANDING AT NEAREST AIRPORT. PILOT ATTEMPTED STARTING TOE 

ENGINE AFTER SHUTDOWN, WHEN TOE ENGINE CAUGHT ON FIRE, FOUND FUEL LEAKINQ OVERBOARD FROM 

CARBURETOR INTO WARM ENGINE COWUNG AREA. 

Printed ApritD2,04 

Page46 

210-695-2204 

An airsafety.com Product 

Prepared From Officot FAA Recortls By: 

A ir Data Research 

9865 Tower View, Heloles. Texas 78023 

• Fox 210-695-2301 friio9ofrsolety.eom - wWw.ofrsotety.com 

CopyrigM 1999,^004 Afr OdaReseoidi 

Al Rights Reserved 
rOn 

raHHo. 

StogeOpns. 

Severily 

AUCode 

Remorics 

Port Nome 

Ndure dC6nd 1 

Nature d Cond 2 . 

ATA.Iext 

Port location 

PrecProcT . 

Prec Proc 2 

. 

PortCondlion 

RplCMNo. 

Operdor 

AcHMfr/lMdl 

Eng Mtr/Md 

Prop MIr/Md 

CmplMk/Md 

AcllSN 

EngSN 

Prop SH 

Cfhpt SN 

.-

AcHRegNo. 

OMculyOde 

Totdnm* 

nme Since O/H 

30766 FLOAT SOLDER LEAKED PIPER PAlfMl 21(4 iSOf N9263N 

NOT FLAME OTOER 1990030100025 LYC0320D3G LIS66339A Ol/OSM 

4 •.:•..'.: • 21 - .• 

7322 FUELCONTTIOUCARBURETOR FACET M^SP A 0045069 21 

ENGINE CAUGHT FIRE DUE TO DEFECTIVE FLOAT IN CARBURETOR. SOLDER JOINT OH FLOAT ALLOW]pa> FLOAT TO PILL 

WITH FUELFLOODIN G CARBURETOR. .' ^ • ' ' .' .. .' . _• ' : 

FLOAT STUCK PIlPERPAa]<l 2a791«160 NSOTID 

TAXI/GRND ENGINE ST(M>P OTHER 19900915000S6 LYC0920P2J L974789A 06/2900 

4 FLAME 1200 . 

7322 FUELCONTROUCARBURETOR FA<:ETMA4SP A 16767 1200 

PILOT REPORTED AFTER LANDI NG THE ENGINE QUIT. DURING AN ATTEMPT TO KESTM-t THE ENGINE, A HRE STARTED 

. IN THE INDUCTION SYSTEM AND SPREAD TOROUGH THE ENGINE COMPARTMENT: TH E FIRE WAS EXTINGUISHED, 

SUBSEQUENT INVESTIGATION FOUND CARBURETOR FLOAT STUCK. DUMPING RAW FUEL INTO THE INDUCTION AIR BOX. 

NOT 

CARBURETOR 

OTOER -

MIXTURE MALFUNCTION 

NONE 1991021200064 

7322 FUELCONTROlA^ARBUMrrOR 

CARBUMTTOR FAILED TO SHUT OFF ENGINE WHEN MIXTURE CUT OFF. 

30766 

TAXIAJRND 

4 

7322 

FLOAT ASSY CARBURETOR SPUT 

ENGINE STOPP OTOER 1994080100597 

FLAME 

FUEL CONTROUCARBURETOR 

PIPER PAIS Ml 

LYC 0320036 

FACET MM SPA 

PIPER PA» 161 

LYC 0320036 

FACET MA4SPA 

2879I6631: 

(:k]I9b6 

287816477 

U64189A 

CK6I0557 

N296SM 

12A>S0O 

' *•• . 

•<•. ' 

N9464C 

6S/2ai94 

2499 

0 

PILOT REPORTED WHILE TAXIING. ENGINE QUIT. DURING THE ATTEMPTED RESTART. ENGINE CAUGHT FIRE; PILOT AND 

STTTOENT EVACUATED THE AIRCRAFT. INVBSTTGATTON DETERMINED TOE SOURCE OT FIRE WASTHE CARBURETOR. 

WHEN TOE CARBURETOR WAS DISASSEMBLED. NOTED THE FLOAT ASSEMBLY WAS SPUT OPEN (TOE RIGHT SIDE OF THE 

FLOATS. THIS SPUT IS BEUEVED TO HAVE BEEN CAUSED BY THE FIRE HEATING THE BOWL AREA OFTHE CARBURETOR . 

AND POSSIBLE FUEL INSIDE THIS SIDE OF FLOAT BEING EXPANDED BY THE HEAT. PI iX}T INDICATED THAT ON PREVIOUS 

LAHDIW. ENGINE QUIT. HE RESTARTED. BUT NEEDED TO INCTIEASETHROTTXESHTING TO KEEyEWiPlE RUNNING. 

8618 LOCKWIRE CARBMI X FAILED PIPERPA»I61 . 288016202 N3567P 

INSP/MAINT OTOER NONE 1996060600892 LYC O32093C L1271D39A 04/)OS6 

•' 4 • • . .' 2200 . 

7322 FUELCONTROUCARBURETOR FACETMA«iSPA ;CK81527»' 0 

CARBURETOR MIXTURE CONTTMM. DID NOT FUNCTION PROPERLY. UPON INSPECTION, PN 86-18 LOCKWIRE, FOUND 

FATIGUED, CRACKED IN HALF, NOT ALLOWING FOR MIXTURE CONTROL SHAFT TO BE PROPERLY OPERATED. 

MA4SPA CARBURETOR TUBE ACCEL PUMP LOOSE PIPER PAiai61 28796039 N2I428 

NOT. W/UINING OTHER 1997010900829 LYC 032(«>3C LS61839A iim/ M . 

4 NB2B 1886 

7322 FUELCONTROUCARBURETOR FACET CK6li4l7 . 0 

IN FLIGHT, RPM WOULD NOTbBCREASEBELOW2000 RPM. INVESTIGATION FOUNDACCELERATOR PIM P NOZZLE 

DISLODGED AND LYING IN AIR BOX. CARBURETOR SENT TO REPAIR STA FOR OVERHAUL SUSPECT FK>ZZLE/U>i)BSIVE . 

BROKEN LOOS3E WHEN SINGLE PIECE VENTinU WAS INSTALLED AT 1865 HRS-LANDIhX; WAS SAFE. NO DAMAGE ENGINE 

KILLED ON FINAL, WITO MlXUTRE CONTROL : .. ^: 

MA4SPA CARBURETOR . THROTTLE SH/lFTFRpZE PIPERPAiaiOl 287816128 N47717 

INSPMAINT OTOER NONE 1997052900302 LYC03!!«I>86 . L3589927A 04^90 7 

4 • • '.'.;• • ' p ^ ••. • • 

7322 FUELCONTROL/CARBURETOR FACET 0 

THROTTLE SILiFT FTtClZE IN BUSHINGS, POSSIBLE RESULT OF PREVIOUS INSTAlXAnON OF TOROTTLE SILtfT raT. 

UNABLE TO DETERMINE EXACXCAUSE. - . .-•... ; . ' ' • ' 

MA4SPA CARBURETOR THROTTLE LOOSE PIPERPAJSlSl 

INSP/MAIFTT OTHER' NONE 1997O6I9OO208 LYeO320D3G 05/22«7 

• A ' ' 0 . 

7322 FUELCONTROUCARBURETOR 900 

THROTTLE BODY WIOSE: AT PARTING SURFA{: E TX3 FUEL BOWL DUE TO LObsENlNGOF LOCMNG TABS VNpT THE 

RETAINING JOLTS'. SUBMITTER RECOMMENDS SAFETY wiotE IN PLACE OF TABS. THlRDlNt^lDENT NOTED WITH LOCKING 

\ ) F>rinied Apritoi2.04 ^ ~ An airsafety.com Product ~"^ Coi^right 1999.2004 Afr Data Research 

V _ . Pags47 /VeporedFromOfficib/FAARecordsBy: Al Rights Fleserved 

Air Data Research 

9865 Tower View. Helotes. Texos 78023 

210-695-2204-fox 21.0-695-2301 «i(o©oirsolety.cdm - virvrt(.«^solety.com 
- • « lf 

Sep(e!mb(iF.2fi6l '^M^'S^l^A I' 

Wfai» th|».page opens, select *'M.or D SuljiQis^QaFonn!'kixir 

-; _ Difiiculty Rqwi^ button at the top left to send the fonn. Many of yoohave iiK^jMl a^Qii^'tlj^ sertfce. It 

f Y isnaw-.aYaUab)ev.an4ween<;Qurageeveiyonetouse.this.forniat.whensubn^^ga 

v infoamMtQiu. 

( ) 

:( I 

S^yiGEDIjracmTYlUEPOHTIN Q PROGRAM 

The objective of the Service Difficulty Reporting (SDR) Program is to. achieve prompt and appropriate: 

conection of conditions adversely afTectihg continued airworthiness of aeronauticial products fleet wide. 

The SDR program is an exchange of information and a method of communicatioh between the. FAA and 

the aviation community concerning inservice problems. 

A repoirt is filed whenever a system, component, or part of an aircraft, poweiplaiit, propeUfir, or appliance 

fails to function in a normal or usual manner, in addition, if a system, component, or pait of an aircraft^ 

poweiplant, propeller, or appliance has a flaw or imperfection which impairs, or which may impair its 

friture function, it is considered defective and should be reported under the program. 

These reports are known by a variety of names: Service Diflicul^ Reports (SDR), Malfuncticm and 

I^efect Repoits (M and D) and Maintenance Difficulty Repons (MDR). 

The consolidation, collation and analysis of the data, and the rapid dissemination of trends, problems and 

aleit information to the appropriate segments of the aviation community and FAA effectively and 

economically provides a method to ensure future aviation safety. 

The FAA analyzes SDR data for safety implications and reviews the data to identify possible trends that 

may not be apparent regionally or to individual operators. As a result of diis review, the FAA may 

disseminate saficfy information to a particular section of the aiaation community. The FAA also may 

adopt new regulations or issue airworthiness directives (AD's) to address a specific problem. 

The primary source ofSDR's arc certificate holders operating under Parts 121,125,135,145 of the . 

Federal Aviation Regulations, and the geiieral aviation communis which voluntarily submit records.- FAA 

Aviation Safety Inspectors may also report service difficulty infonnatioh when they conduct routine 

aiiciaft.and maintenance surveillance as well as accident and incident investigati(>ns.. 

The SDR database contains records'dating back to 1974. Reports may be submitted on the Internet 

through an active datsi entry form CM-on hani copy.. The electfonic data entry fc>nn is in the AFS-€(X) 

Aviation Infoniiation web site under the headinig SDR Main Menu. TheUIULis: <http-i/av-infoJiuLgov> 

A public search/'query tcxil is also available on this same web site. This tool has provisions for printing 

remits or downloading data. 

At the current time we arc receiving approximately 45,(X)0 records per year. 

19 
r O 

B^ p. Deportment 

r ' >fTransportcitk>n 

' Fedeial Avtanon 

AdrnMstroffon 

Hegtjfatoiy Support O/tnslon 

ADVISORY CIRCULAR 

43-16A 

r . • 

r. 

[•AVIATION MAINTENANCE ALERTS 

r 

r 

r 

jMMMrijr 

^ ALERT 

r NUMBER 

278 

r 

f: 

1 

r 

r 

r 

r 

SEPT. 

2001 

( ) 
r ; 

1 

r'" ' 

r,-

rr>. 

r 

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r 

:«i*-'i4< 

LINl'l K» .ST.Vt i;S OOVi:UN.MKNt 

Memorandxuii RiDERAL AVIATION AGEKCY. 

TO Chief, laish t Standard.'? .Fiel d Divisio n Ho. 3 DATE: June 21 , 1961 

Attention : Chief, Propulsio n Section . i'S-31|iO • ; ' . . 

.KRO.M Chie f J Propulsion Sfection 

suDjEcryioat Kcodle. Valyc - A.>5sy i»233-580 Prom Marvtjl Scheble r MA i|-$ 

Cax-b\iretor, ;5/N f|00I|l|66; GADO l-llj Memorandum t o FS-rllOO Dated 

Juna 13 , 1^61. 

•Thio .subject metering vsj.ve and i.-.3mprandun are being forwajxied t o 

you fo r inspectio n and-arsj* othe r actio n you deem appropriate . 

Af.tsn^arda pleas e retur n th e par t t o this office . 

This cai-biiretor co'iBpooent >;as renioved from 3 Pipe r PA-2liairplar.s 

}.i:ir.h cMJcricnccd an cntiinc fir e darin g normal descent fo r .a 

lancin g a-oprosch. Indication s ar e -that a .fuel-fed fir e occurred 

a t th e ccrburetor ai r box and iiile t screen and spread to the rea r 

righ t portio n of "the nacell a wliere.nioat of the fir e damage appeared. 

Th« r^aeons; for suspecting'th e float* valve stickin g i n the open, 

positio n .ai-e tlio extrtin?.ly jaeec d guide edges, on the valve^landnihe 

fee t tha t 3 soft rcct.illic sriir/in£\-(.l/6" - nor!-raagnetic)va5 found 

betveeii t-hc y.-l.ve rjid vnlyc seat. The .cdrplcnii had approadlnistf 

600 hour.-, of flyin g -tiisc \-TJX tlxj carbureto r >»as never disssscm]il(i4j 

as f.-vr as ,'K2 rknoviV Tri? pilot'iridicatcd.tb& t for aomo-tims tl«/..i.r7 

ijncjine rnn. i'ouj;h .at yti'ious-po;*er,.iettings and waa rathe^r sentpt^ f 

t o inixturo co;itrol. 3}-srianipulating the throttl e and wirture7/^ , 

.control, ."the pilot, was .abl a !t6 .achieve smoother engine" operataonT 

. Thc.nopvc dcjcidc-ed coridition reflects cithe r .n qualit y contip3{):i^?'^ 

dcficiciicyj or a bogus p;u-x on-.th-io caroui'etbr model. •.Ue. would'' :/ X 

r.;:^recintc yovvr cominjaitc ;.nd/oi' thos e of the CErburctor )nanu4 J.,-^-) 

facLurc-r rctarcin y th e obceryaT.ions liste d i n the attache d '*' "" ' 

men;craridiuii« • 

S. H. Ross, FS-ial|0 

Attcicbusnta 

\,f vV.^ ' 

Jl .-TI^' ul 

j£is£. 

.•9)'. 
C .\'-^ 

.MA R V E L - S C H E B L .E R P R O P U C T S V D I V-I:S I O } 

( V ;': '• ; .:--;;BpRG-WARNER C.ORPORATJPN;;; .: . .^^^•; :^^ 

•. MAI N OFFICE AN b FACIOU T . . , :. . .• "•_ .-

. 01cA t uR. " 1111NO.Is. ' u . s. A.- ; . ' ^ ". ";' 

AIRCRAFT. December.:20, W63 

SERVICE BULLETI^ 

•'• #A6-63 

TO: Al l Outlet s . 

.iUBJBCI: New Floa t Valv e wit h Mechanica l Attachment ; to'Floa t . ;. 

CARBURETERS AFFECTED: Al l MAH-S aniJ 6-Serie s 

^An Inprovc d floa t valv e liicchanisni .which attache s th e valv e t o 

• th e .float , i s goin g into.', productio n o n alls'ubjec t carbureters. -

. -^ -Positive , attachmen t o f the-fl'oat.-valve , t o the-floa t wil l assure/'—; 

'. ! th e va.lve bein g pulle d of r th e sea t when th e floa t drop s .to admit, ' 

I'Y \ '.- .. :..•'../.•••additionxl-fuel^; .''....-.: '•.'„••• •.:.':"• •• •;•''•:''-•.". .'':'• •'."•'. V-'..;'-. '" 

•':.,••_.'•• Some"[sticlcirig ha s bee n .re.ported,'.du e t o deposits-fro m evaporate d '"' 

. . fue.l .and other'foreig n materials. - .- ../ .^ ,"" ,;'.. . 

'•. .TIJC attachnen t cli p i s easil y insta.ile d and hel d i n plac e by the . 

.-.float shaft,-,a s ^hown i n the- illustration s on,th e revers e sid e 

.. ' ?• o f thi s bulletin . . •; • : ' \-

The' new part number i s A233-61-4-floa t valve , sea t and cli p assembly.-

whic h ,Vfi 11 replac e par t number A233-606 . 

..' : " • . .' • • A233-61^..Lis.t Pric"e^ • ,S7.60 

" ;• . Avaiiabi e from you r Marvel-Scheble r .Distributor . 

MARVEL-SCHEBLER PRODUCTS DIVISION .. 

A -

f ) 

Servic e Sale s 

nr 

(Se e 1 lliis.tration s on Revers e Side ) , N-.-'^" 

............. .. . _ .. . • , , r 
r . 

r 

r: 

/ . 

I • - • 

r ;••'• 

r : 

r 

r 

{{.'UAwi,«..;i'.-il.-.'Ji~-'..: ^;.^<..'Wift._ifiri;v.:.i.j*..;i-.j,:i.iiij.^.t,r3 ;cxj.«mtuiJ'X)Ut'ii.-'ff;«..j<mii-*.i.ig.aaiiuijt^-..uiIIIL.H U ,.•• . 

I 

\ I - \ :.•• • 

- \ > \ >••• V- j 

\V\\\W N 

j . FLOA T IN • y 

- ^ ;. POSITION t;.^' ' OPJETN -

A29-16 2 FLOAT.CLI P 

TJ.it.LL..,in.-j^-J^.:£^'jmilJ.'..—llU.C^'gjU .1' . •• .<L.1!UJ^ 11,1 li, ••^•iiii j i. ii . - i,. •' . ^7.f»,ar^.M<.i.iy|,'.H.^ , j „ • jj n ^^^ jj^^j,,_,l IJI^ULTrJ 

-.••ti 

^^mm MM.-

.•..-.••.• ? ,.'V l "• 

.Morvel-Schebler rfoducli Oivuion, Oorb-Warncr Corporolion, Decatur. Illinois, ,U. S. A. BCii^WAKRCIt 

/t73'U 
r 

r 

\ i 

r 

r 

r 

r 

r 

r 

Federal Aviation Administration - Service Difficulty Report Database 

PoitNOL Port Nome 

Sktge Opm Nolur* of Cond 1 

Severity Nohire H Cond 2 

AlA Code ATA Texl 

Remoftcs 

rati locolon ro d CondlHon 

rrecPiDcl MCMNo . 

free Pioc 2 Opcfolor . 

Acll Mir/Mdl 

EngMlr/Mdt 

Prop Mfr/Mdl 

Cmpt Mk/Mdt 

AcllSN. Acll.FI*flNo. . . 

EngSN DMcvUyOol* 

Prop»^ Toldinine. 

CinptSN lhn*Snc«o/H . 

ATlilGHRPM LEANMIXTURB 

TAXI/GRND OTHER NONE 197e0321000(3 CONTO300D 29027 

W WARNING INDI 

7322 FUELCONTROIVCAHBURETOR MARVELSCHEB MASSPA S57781R 

L^AN MIXTURE AT HIGH RPMREMOVED & REPLACED CARB.O-H REPL PN A86540yALVE.PN A166Ka KIT.A4M9 

PACKINa^78889&A78121 • . 

ACCEL PUMP 

OTHER NONE 

FAILED 

UNKNOWN 19790731000«0 

4 

7322 FUELCONTROlyCARBURETOR . FACET MA3SPA. 

WATER COhTTAMINATlbN CAUSED FAILURE OF ACCELERATOR PUMP « CORR OF CYL WALLS 

ACCEL PUMP 

OTHER NONE 

FAILED 

UNKNOWN 1979091800061 

• 4 

7822 FUELCONTROUCARBURETOR FACET MA3SPA 

WATER CONTAM CAUSED FAIUIRE OF ACCBLERATOK PUMP PLUNGER AND CORR OF CYL WAULS 

N2F0R 

0 

0 

N2F0R 

0 

0 

229687 IDLE TUBE OVERHAUL WRONG SIZE 

INSP/MAINT OTHER NONE 1980011800099 

4 0 

7322 . FUELCONTROIVCARBURETOR FACET MA3SPA BE108383 0 

CARB OVERHAUL KIT PART A286-1636 CONTAINED A .070 SIZE IDLE TUBE INSTEAD OF THE REQUIRED .059. 

29198 . CXIP. BOWL - BtNDIWJ 

NOT AFFEGTSYSra NONE 19820226000« 

4 , 6 

7S22 FUELCONTROUCARBURETOR MARVELSCHEB MA3SPA 0 

THE NEEDLE IN CARB FLOAT BOWL HANGS UP WHEN SOWL IS EMPTY OR NEARLY EMPTY. HAD PROBLEM SINCE HJOAT 

PN30-T59WASINI TIATED. 

CARBURETOR TOO HEAVY 

NONE 19830126000«1 

30628 FLOAT 

NOT FLUIDLOSS 

4 • 

7322 FUELCONTROL/CARBURETOR 

FLOAT FOUND TO WEIGH 19 GRAMS. REPLACED FLOAT. 

MARVELSCHEB MASSPA 3937888 

13IS20 THROTTLESHAFT MISDROXED 

NOT OlHER NONE 198610Oe0O0« 

4 -O 

.7322 FUELCONTROL/CARBURETOR . . FACET MASSPA BEn99 8 0 

THROTTLE PUMP ACTUATOR HOLD DOWN HOLE MISDRILLED ON NEW PART. HOLD DOWN SCREW WILL NOT LINE UP. 

MISMANUFACTURE 

1991081400163 

«F1 2 VENTURI SKIRT 

INSPMAINT INADEQUATEQ . NONE 

4 

7322 FUELC0NTR0L«:AR6URETP R FACET MA3SPA 

"VENTURI SKIRT HAS A FOLD IN THE CASTING. NEW PART RIGHT OUT OF THE PACKAGE. 

06/2SS1 

0 

0 

Printed A(vn02.O4 

Paget 

" '~' /in airsafety.com Product 

Prepared From Officiol FAA Records $rAir Data Research 

9865 Tower View, Heloles. Texos 78023 

21(U9$-2204-Fox 210-695-2301 ir»lo©cAvitety.com - www.dirsotelv.com 

copyright 1999.2004 Air Cab Reteaicti 

Al Righit Reserved 
roil No. Port Nome 

Stose Opnt Nature ol Cond I 

Severity Nature ol Cond 3 

AIA Code AIA Text 

Remoita 

Part locoKon Port CondWcn 

frecProcI Rpl<CMNa. 

Prec Proc 2 Operator 

A d l MIr/Mdl 

EngAWr/Mdl 

Prop Mr/AAdI 

Crr^/M/Md l 

A d l SN Adt Reg No. 

EngSN DMkuily Dole 

PropSN Totolllme 

CmpI SN nme Since O/H 

0 

I 

VENTURI 

OTHER 

ENGINE CARB WARPED 

NONE 19940606003S2 

MASSPA 

INSP/MAINT OTHER NONE 19940606003S2 0V14S4 

4 ..•(> . 

7322 FUELCONTROL/CARBURETOR FACET 0 

FOUND 2 OF 8 PRIMARY VENTURI OF THE 2-riECE TYPE WERE NOT LOOSE OR MISSING. BUT WERE EXTREMELY 

DISTORTED. SUBkSTTER BEUEVES CAUSE WAS FROM CARBURETOR FIRES. AD 93-18^3 A.1 REQURBS OOTAUATION OF 

ONE PIECE IF PRIMARY VENTURI IS LOOSE OR MISSING. SUBMITIER FEELS AD SHOULD ADD 'ALSO REPLACE VENTURI IF 

m s DEFORMED (NOT ROUND) OR MISHAPED". ' .. ' ' 

BOWL 

OTHER 

CARBURETOR CONTAMINATED 

NONE 1992110400107 

CESSKA120 

CONTCS012F 

13268 

46899 

NaOlON 

INSP/MAIKT OTHER NONE 1992110400107 CONTC9012P 46899 10/19S2 

4 0 . 

7322 FUELCONTROLA:AHBURETO R FACE T MA3SPA 132 

SUBJECT CARBURETOR WAS IKSTALLED ON A GONHNENTA L C90-12F ENGINE WHICH WAS INSOALLED IK A CESSNA 12». 

THE AIRCRAFT WAS INVOLVED IN AN ACaDEbTT ON 1-20-92. INVESTIGATION OFTHE ACCIDENT DISCLOSED CORROisiON 

AND CONTAMINANTS IN 1HE CARBURETOR BOWL AND IN IH E MDCTURE CONTROL CAVITY WHICH IltKVENTED THE 

MUTURE CONTROL SHAin'FROM TURNING FROM THE IDEAL TO LEAN TO RICH POSITION. THE MANUFACTURER 

RECOMMENDS IHB CARBURETOR BE OVERHAULED RVERY FIVE YEAR^, THE LAST RECORDED OVERHAUL WAS JUNE 2^ 

1983. ^ ' • 

INTERNAL NEEDED CESSNA 150 16072660 N1840Q 

INSP/MAINT OTHER NONE 1974102800061 CONTO200A . Z18S007U 

W 1786 

7322 FUELCONTROL«ARBURETOR MARVELSCHEB MASSPA n8 » 

POWER LOSS ON T-O CUMB-POUND EXTREMH..Y RICH MIXTURE AT FULL THROTTLE. RSPL CAR B. 

FLOAT 

OTHER 

FLOAT BOWL STUCK OPEN 

NONE 197412180006$ 

CESSNA ISO 

INSP/MAINf CONrO200A 

1 W 

' 7322 FUEL CONIROL/CARBURBTOR MARVELSCHEB 

FLOAT STUCK OPEN^FOUND SMALL PARTICLES OP DIRT-ENOUGH TO UNSEAT NEEDLE. 

73086. N1786Q . 

BE161173S 

FUELINLET CLOOOEO CESSNA 160 62225 N8926S 

INSP/MAINT OTHER OTHER 1976020300061 CONTO200A 

W 0 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MASSPA AV22903 0 

1NVEST7GATI0N.ENG RAN OK UNTIL RAPID THROT ADVANCE.THEN QWTJVCCELEaiATOR PUMP CK VLV 

CLOOOED-POSSIBLB MOISTURE 

ACCEL PUMP 

OIHER 

CARB 

NONE 

BINDING 

1976020700080 

CESSNA 160 

CRUISE 00^0200 ^ 

W 

7322 FUELCONTROL/CARBURETOR MARVELSCHEB MASSPA 

THROTTL JAMMED HALF WAY OPEN. POUND A SLIVER OF METAL IN ACCELERAnNGPUMP ASSY. 

16063244 Ne644P 

2618 

268 

DRAIN PLUG 

INSP/MAINT OTHER NONE 

W 

7322 FUELCOKmOL«3ARBURETOR 

SEIZED CESSNA 150 16OT8I00 NS4TD 

1976022500096 CONT O200A 214til871A 

MARVELSCHEB MASSPA BE2014012 0 

CARBURETOR DRAIN PLUG ALLEN TYPE IS SEIZED CAN NOT BE REMOVED USINQ NORMAL METHO D WITH ALLEN WRENCH 

,;..( 

29IS9 CUP FLOAT VALVE 

INSP/MAINT OTHER NONE 

W 

7322 FUELCONTROl/CARBURETOR 

IMPROPER INSTL CESSNA 160 

1977012600088 CONT O200A 

16072679 N1S79Q 

21356471A 

0 

MARVELSCHEB MASSPA BE1813594 0 

FLOAT STUCK.DISASSY FOUND THE SHAFT REF NO 29 PAGE 1 MARVEL SHEB PARTS BOOK WAS INSTL TilRU SPRING CUP 

NO 27 WRONG 

Printed April 02.04 ^ '. An airsafety.com Product 

P»9B2 Prepared From Ofnckjl FAA Records By. 

Air Data Research 

9865 lower View, Helotes. TeMS 78023 

210-695-2204 - Fox 210-695-2301 inioeoirsalety.com -www.oir50lety.com 

Copyilgtil 1999;2004 Air Data Researdi 

AIRlgtitg.ReMn«d 

•2<r 

' ( y 
Port N a Port Nome 

Sog e Opnt Nolure ol a>nd 1 

Severily Nature ot Cond 2 

ATA Code . AWIexl 

Remortu 

DISCHRQTUBE 

INSP/MAINT OTHER 

W 

Port locaion 

Prec Proc 1 

Prec Proc 2 

ACCELERATO 

NONE 

7322 FUEL CONTROUCARBURETOR 

Port CondWon 

RplCMNa 

Operolor . 

CRACKED 

1977O4OSO0OJB 

AcH Mfr/Mdl 

EngAIUr/Mdl 

Prop MIr/Mdl 

Cmpt M»/Md 

CESSNA 160 

CONT0200/ 

MARVELSCHEB MA3SPA 

ENGINE WAS ROUGH RUNNING AND WOULD NOT IDLE FOUND ACCELERATOR DISCHARGE TUBE. 

30789: FLOAT 

UNKNOWN OTHER 

CARB 

NONE 

FULLOPEN 

1978061600029 

CESSNA 150 

AcllSN 

fogSN 

PropSN 

CmplSN 

16077674 

2S37e6A48 

104809 

17875 

AdlRegNo. , 

DMlcully pole 

Total TInie 

Thne Since O/H 

N6377K 

643 

643 

N6476T -

W 859 

7322 FUELCONTROUCARBURETOR MARVELSCHEBM.A3SPA BE201428O 869 . 

DXJRING MANUVERS CARB FLOAT OPENED TO FULL EXTENT NEEDLE COCKED IN SEAT CAUSING O VERFLOW.FLOAT HAS. 

NODOWNSTOP. . ._ . ' • - . • 

29198 CU P METERING WORN CESSNA 150 

INSPMAINT OTHER NONE 197806270009 CONT 0200/ 

W 700 

7S22 FUfiLCONTROUCARBURETOR MARVELSCHEB MASSPA BE2014280 700. ' . 

THE MAIN METERING NEEDLE COCKS IN FLOAT VALVE SEAT & Wll i NOT RETURN TO.ilETER FU EL WITH OUT BANGING 

BOWL . • • '_ _ •• • ' 

VENTURI THROAT MELTED CESSNA 160 15076349 NSOlOV 

TAKEOFF OTHER . NONE 1978073100032 CONTO200A 2S2420A48 . 

W MCAULY IA102OCM G16112 2060 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MASSPA BE2418706 2060 

NOT ABLE TO GET FULL RPM RAN RICH ON GROUND VENTURI MELTED MOULTEN METAL ON TOP THROTTLE VALVB 

( ) 

A194&93 PLUNGER ACCLPUMP RUSTED INOP CESSNA 150 

INSP/MAINT OTHER NONE 1979062900043 CONTO200A 

-.4 . 

7322 FUELCONTROUCARBURETOR FACET MA3SPA 

DURING INSP FOUND CARB ACCELL PUMP PLUNGER RUSTED & INOP 

N2777S 

0 

0 

A194699 

INSPMAINT 

. 4 '• 

7322 

PLUNGER 

OTHER 

ACCLPUMP 

NONE 

RUSTED INOP 

197906290OO6Z 

FUEL CONTROUCARBURETOR 

CESSNA 150 

CONT 0200A 

FACET MASSPA 

N7099P 

VENTURI 

ENGINE STOPP 

CARB 

NONE 

BROKEN 

19830519000n 

CESSNA 150 

CONT O200A 

46A33 15075284 N11266 

LANDING 

4 1828 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MASSPA J828 

ENG QUrr AFTER LND. FOUND ACCELERATOR PUMP LEAKING EXTERNALLY. DUB TO PRIMARY VENTURI BROKEN + 

PISTpRTBD-USINQ AUTO FUEL. 

194503 PLUNGER CORRODED CESSNA 150 

TAXM3RND WARNING INDI NONE 198501260OO44 CONTO200A 

4 . • 0 .• • 

7322 FUELCONTROUCARBUBiETOR FACET MASSPA BE15I146I 0 

PUMP PLUNGER EXPANSION SPRING DETERIORATED DUE TO CORROiSIOR SUSPECT AUTO UNLOADED FUEL. 

A4633 VENTURI CARB MELTED 

INSP/MAINT FLUIDLOSS NONE 1987101600036 

CESSNA 160 

CONTO200* 

16066035 N3736J 

647646A 08/16«7 

4 • •. • • • 0 • • 

7322 FUELCONTROUCARBURETOR MASSPA 0 

ENGINE WOULD NOT RUN STATIC AND fVLL RPM IN AIR. CARB REMOVED AND POUND VENTURI MELTED OUT OF SHAPE. 

CAUSED FROM CARB FIRE PREVIOUS TO THIS INCIDENT AND COULD NOT SEE UNTIL CARB DISASSEMBLED. 

Printed 

Pages 

April 02,04 

210695-2204 

An airsafety.com Product 

Prepared From Officio/ f AA Records Biy: 

A ir Data Research 

9865 Tower V-iew. Heloles. Texos 78023 

• Fox 210^695-2301 ihto9airsofety.com - wvnv.cinolety.eom 

CopyrigM 19992004 Air Oa^ Researcti 

Al Righto Reseiyed 

.3^ 
n 

Part Ho. 

Sloge Op.m 

Severity 

ATA Code 

Remorics 

INSP/MAINT 

Port Nome 

Nature of COnd 1 

Nature ot Cond 2 

ATA Texl 

SCREEN 

OTHER 

Partlocatkm 

PrecProcI 

Prec Proc 2 

CARBINLET 

NONE 

PortCondRion 

RplCMNo. 

Operator 

LOOSESOLDER 

19741216O0O90 

AcltJMIr/Mdl 

EngAMr/Mdt 

Prop Mfr/Mdl 

Cmpt Mk/Mdl 

CESSNA 172 

CONTO300A 

Adt SN Ad l Reg No. 

engSN OJIIicu«yDal» 

PropSN lolalTlme 

CmptSN Time Since p/H I 

36477 N8777B 

W « 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MASSPA 3937166 0 

PARTIOf S OF SOLDER FROM FUELINLET SCREEN AT CARB SEPARATED & LODGED IN NEEDLE SEAT PRBVENnNQ 

CLOSING OF NEEDLE V .-••.,'• 

ACCEL PUMP 

OTHER NONE 

CORRODED/INOP CESSNA 172 

1978070700038 CONT030QA 

AI94593 36739 N9139B 

INSP/MAINT 

W •2462 

7322 FUELCONTROUCARBURETOR MAKV&LSCHEB 400200$ .246* 

ACCEL PMP CIRCUIT STOPPED UP AT OSCHG NOZZLEJPMP PISTON EXPSN SPRING REDUCED TO CLUMPS OPRUSTlCK VLV 

SPRNQ RUSTED. • : ' . - • .. • 

29184 CUP-FLOATVLV FLOATKE T BINDING CESSNA 172 N2030Y 

INSP/MAINT OTHER NONE 1979121300088 CONT 0300/ 

4 . 6Mf 

7322 FUELCONTROUCARBURETOR FACET MASSPA S22<S49 6SS 

C UP LOCKING DEVICE BINDS CARB FLOAT. WHEN FUEL TURNED ON NEEDLE VALVE WOUID NOT SEAT ALLOWING FUEL 

TO DRAIN THRU C A 

96609 SCREEN CARBURETOR OBSTRUCTED CESSNA 172 46061 N4161F 

INSPMAINT OTHER . NONE 1982010800058 CONT 0800/ 1399(riD&A 

4 0 

7322 FUELCONTROUCARBURRTOR MARVELSCHEB MASSPA 4006663 0 

SCREEN ON CARB WAS COATED WITH LAYER OF UN T AND END OF SCREEN BROKEN LOOSE AT SOUIER JOINT. 

VALVE 

OTHER 

FLOAT 

NONE 

MISAUGNED 

1986030500091 

CESSNA 172 

CONT 0300/ 

233613 28774' 

INSP/MAINT 

4 " 0 

7322 FUELCONTROUCARBURETOR FACET MASSPA 398«r72 0 

CARB LEAKING FUEL FOUND FLOAT VLV MISAUGNED. DUE TO ASSYMETRIC LOAD CAUSED BY SPRING RETAINER: 

N6674A 

46A66 VENTURI CARB DETACHED CESSNA 172 36970 N4070F 

CRUISE ENGINE STOPP UNSCHED 1993062300091 CONTO300A I3866DaA 08/lOAS 

4 0 

7322 FUELCONTROUCARBURETOR FACET MASSPA ; 4004202 0 

AIRCRAFT ENGINE LOST POWER IN-FLIGHT -• POST ACCIDENT INVESTIGATION REVEALED THAT THE BOWL ATTACH 

SCREWS HAD COME LOOSE AUOWING THE PRIMARY VENTURI TO DISLODGE AND REDUCE AIRFLOW THROUGH THE 

CARBURETOR ENRICHINQ THE ENGINE CAUSING LOSS OF POWER AND SUBSEQUENT EMERGENCY LANDING. . ' 

CF194698 PUMP A^^CELERATO WORN OUT CESSNA I72B 

NOT PARTIALRPM/ UNSCHED 1991060200020 CONTOSOOD 

4 • • 

7322 . . FUELCONTROUCARBURETOR FACET MASSPA 

AIRCRAFT LOST POWER RESULTING IN OFF AIRPORT LANDING SUSTAINING SUGHT DAMAGE. 

17248660 . N81.66X 

. 02/15AI 

, 0 

0 

CARBURETOR REMOVED 

AND ACCBIERATOR PUMP FOUND WORN OUT AND TRASH IN PUMP INLET CHECK VALVE PUMP REPLACED. CARBURETOR 

CLEANED. AIRCRAFT THEN FLOWN OUT. ' 

BOWLSCREWS 

OIHER 

CARBBOWL 

NONE 

I^OSB 

19780223O0O4B 

CESSNA I72C 

INSPMAINT CONTOSOOD 

W • 

7322 FlffiL CONTROUCARBURETOR M.ARVELSGHEB MASSPA 

BO!M.»SC3tEaSJ8nSREFbUND'LOOSE WITH SAFETY WIRE PROPERLY INSTALLED 

17248935 N8435X 

0 • 

0 

Printed Aprl02,04 

Page I t 

•' '• An alrsafety.com Product 

Prepared From Omdol FAA Records-By. 

A i r Data Re-search 

9865 lov/er View, Helotes, Teiias 76023 

210-695-2204 - Fox 210-695-2301 lnfo©oirsotety.com - www.oirsofety.com 

Copyriglit 1999;2004 Ak Datai Raseardv 

ARR!gl« Reserved 

H ^ 
r 

r 

r 

r 

r . 

r •: • 

r 

r 

Port No. Port Name 

Stage Opns Nature of Cond 1 

Severih' Nolure ol Cond 2 

ATA Code ATA Text 

Remotes 

Port LocoRon Port Condition 

Prec Proc t Rpt CM No. 

Prec Proc 2 Operator 

A d l Mtr/Mdl 

Eng Mfr/Mdl 

Prop MIr/Mdl 

Cmpt Mk/Md 

AcllSN AdlRegNo, 

EngSN OiMcullyOale 

PropSN TotolTlme 

CmpI SN Tirne Since O/H 

FLOAT 

OTHER 

CARBURETOR CHAMBER LEAK 

NONE 1991081400140 

30766 

INSP/MAINT OTHER NONE 19910S140014D 07/18A1 

4 . 600 

7322 FUELCONTROUCARBURETOR FACET MA4SPA MA45FA 500 

THE FLOAT CHAMBERS FILLED WITH GAS CAUSING A HEAVY FLOAT SITUATION. FLOAT ASSEMBLY IS METAL. 

METAL CONTAM 

1992071000066 

CF194681 PUMP ASSY . SHAFT 

INSP/MAINT OTHER NONE 1992071000066 06/08AZ 

4 • 0 ' 

7322 FUELCONtBOl/CABBURETOR FACET MA4SPA CK611804 0 

DURING TEARDOWN FOR OVERHAUL, A LARGE ACCUMULATION OF CHROME CHIPS WERE FOUND IN THE ACCELERATOR 

PUMP SEDIMENT ROWLAND SOME IN THE FLOAT BOWL ^ - . 

46Fli VENTURI INSIDE DIA FLAKING 

INSP/MAINT OTHER NONE 1992071400060 06/1SA2 

4 • • 0 • 

7322 FUELCONTROUCARBURETOR FACETMA4SPA 0 . 

INSPECTION FOUND INSIDE DIAMETER OP VENTURI FI.AKING AWAY. SUBMTTTER SUSPECTS POOR CASITNG QUAui v 

CAUSED PROBLEM. - ' ' - ' , . ' •. '. 

131621 SHAFT THROTTLE BENT 

INSP/MAINT INADEQTJATEQ NONE 1992100700063 0»Ma82 

* 0 

7322 FUELCONTTIOUCARBURETOR FACET MA4SPA CK612502 0 

WHEN RECEIVED, FOUND THROTTLE VALVB STICKING. UPON INSPECTION THROTTLE SHAFT WAS POUND TO BE BENT. 

OBVIOUSLY, CARBURETOR WAS DAMAGED IN.SHIPPING OR ON INSTALLATION (APPEARS TO HAVE BEEN DROPPED). 

THROm E SHAFT REPLACED WITH SERVICEABLE SHAFT. DEFECTIVE SHAFT RED TAGGED AND RETURNED TO OWNER 

WITHU^OT . 

NEEDLE 

OTHER 

CARBURETOR DEFECTIVE 

NONE .1993031000060 

238615 

INSPMAINT OTHER NONE .1993031000060 02/12iS2 

4 0 

7322 FUELCONTROUCARBURETOR FACET MA4SPA A109679 0 

INSPECTION FOUND RUBBER ON NEEDLE WILL NOT SEAT TO SHUT OFF FUEL FLOW. 

30766 FLOAT SOLDER FAILED 

NOT OTHER NONE 19941014008S6 09/16A4 

4 FUXR 0 

7822 FUELCONTROUCARBURETOR FACET MA4SPA 0 

OWNER REPORTS FLOAT FAILED AFTER 45 MINUTES OF USE DUE TO THE SOUDER SEAM COMING APART ON AN 

OVERHAULED CARBURETOR. .. . ' . ' . '. • • • 

229600 TUBE ASSY . CARB PUMP MISSINO 

INSPMAINT OTHER NONE 1994I2I900S01 69/ZI«4 

.4 4000 

7322 FUELCONTROUCARBURETOR FACET MA4SPA A1810134 1300 

FOUND DISCHARGE TUBE MISSING WHILE I^BPECTIN6 THE VENTURI. THIS DETACHED PART EVENTUALLY GOES INTO 

CYLINDER INTAKE VALVE AND THEN INTO COMBUSTTON AREA OP CYUNDER. 

MA4SPA 

INSP/MAINT 

4 

7322 

CARBURETOR THROTTLE 

VlBBATIONmuFFET NONE 

PARTIAL RPIiWWR 

FUEL CONTROUCARBURETOR 

WORN 

1995051900471 

FACET BL2011S88 

04A>4M 

0 

0 

PILOT REPORTED ENGINE RAN/IDLED ROUGHLY AND WAS HARDTO START. ROUGH«RRATIC IDIE NARROWED DOWNTO* 

CARBURETOR. UNIT REMOVE D FOR INSPECTION. THROTTLESHAFTAN D BUSHINGS WORN BADLY ALLOWING AIR TO . 

BLEED BY. ALSO FOUND ONE STEELSCRBW MISSING FROM BUTTERFLY. UNABLE TO LOCATE MISSING SCREW, POUND 

NO EVIDENCE OF DAMAGE TO CYUNDERS. PISTONS; VALVES, HEADS. USED PROCTOSCOPE FOR ENGINE INSPECTION. 

WORKS GREAT. UNIT (CARB) SENT OUT FOR OVEBHAUU REINSTALLED, OPS CHECKS GOOD. 

Printed April02.04 

Page4 

/\n airsafety.com Product 

Prepared From Omcial FAA Records By: 

A ir Data Research 

9865 Tower View, Heloles. Texas 78023 

210-695-2204 - Fox 210*95-2301 info@airsofetyxom - www.0ir5alety.com 

CopyrigM 19992004 Ak Data Research 

AIRIgtils Reserved 
r 

rartNo. Port Nome 

Slog* Opns No4ure ol CoAd 1 

Severily Nature ol Cond 2 

ATA Code ATA Text 

Rerrarla 

Port locakofi Port CondWcn 

PrecProcI RplCMNo. 

Piec Proc 2 Operator 

Adt MIr/Mdl 

EngMfc/Md 

Prop AMr/Mdl 

CmpI Mk/Mdl 

ActlSN AdlRegNo. 

EngSN DWkuMyDote 

PropSN ToMlhirte .. 

CmplSN TbneShfceO/H 

DRAIN PLUG . CARBURETOR MISSINO 

INSP/MAINT OTHER OTHER 1976010700021 

W 

7832 FUELCONTROUCARBURETOR 

CESSNA 172M 1726414S N30679 

LYCO320E2D L3963027A . 

. •' 30-

MARVELSCHEB MA4SPA CKUSS SO 

BUSHING 

NONE 

JRETOR 

WORN 

197C012100029 

CESSNA 172M 17260948 N2008S 

LYCOS20E2D LS22SS27A 

• ' « ' 

MARVELSCHEB MA4SPA BUi9204 0 

WALKAROUND,FUEL DRIPPING FROM COWUNG JOUND QRAIN PLUG MISSING.FROM BOTTOM OF CA RB-NO FROVISIONTO 

SAFBTYPUiG . .' .. ' ' ' -'•'...•.'. • 

THROrriESHAFT 

INSP/MAINT OTHER 

7322 FUELCONTROUCARBURETOR 

THROTTLB SHAFT EXCESSIVLY WORN AT POINT WHERE IT RIDES IN BUSHING ALSO AOCELBRAT OR PUMP UNKAGE 

. EXCESSrVLY WORN • . ^ • •. 

DEFECnVB CESSNA 172M 17261426 N2069S 

CRUISE OTHER OTHER 1976021900088 LYC0320E2D 

W .. . 2397 

7822 FTIEL CONTROUCARBURETOR MARVELSCHEB MA4SPA 397 

ENG Wlli. NOT ACCELERATE & QUITS RUNNING WHEN POWER IS APPLIED AFTER C^MPUETION O F FRACn c STAU. 

J 

A16676 BOWL(IASKEr SHRUNK 

INSPMAINT (XTHER NONE 1977082200039 

W 

7322 FUELCONTROUCARBURETOR 

BOWL GASKET FND TO BE SHRUNK CAUSING BOWL TO BE LOOSE 

CXSSNA172M 17262003 N12473 

LYC O320E2D L34779^A 

1000 

MARVELSCHEB MA4SPA 1000 

f ) 

THROTTLE ASM 

OTHER 

SHAFT ASSY WORN . 

OrrtiStL 1977I0190006S 

(XSSNA172M 17267091 NI4242 

UNKNOWN OTHER OrCimi. 1977I0190006S LYCO320E2D L4024127A . 

W B31 

7822 FUEL CONTROUCARBURETOR MARVELSCHEB MA48PA CK13I30 U l 

TimOTn..E lEVER ARM WORN NUT AND COTTER PIN WERE IN PIJVCB BTTT NOTTIGHTTX) THE TH ROTTLB SERRATED 

LEVER .' . I • • ' . ' • • ' •' . ' • 

60260 BUSHING THROTTLE MISSING CESSNA I72M 17264174 N46066 

INSP/MAINT OTHER NONE 1978070300043 LYCO320E2D 

W 1710 

7822 FUELCONTROUCARBintETOR MARVQ;SCHEBMA4SPA A10613S 17i0 

CONTROL END.OF CARB THROTTLE SHAPT.HAD EXCESSIVE PLAY.FOUND THROTTLB SHAFT BUSHI NG41AO NEVER BBE»J 

INST.' 

A998 

CRUISE 

4 

7322. 

PLUG.DRAIN 

ENGINE STOPP UNSCHED 

FLUIDLOSS 

FUEL CONTROUCARBURETOR 

MISSING 

1979102600082 

E Nd QUIT JOUND CARBURETOR BOWL DRAIN PLUG MISSING. 

TAXIAJRND 

4 

7322 

PRIVENTURI CARB 

WARNING INDI OTHER 

FUELCONTROUCARBURETOR 

WARPED 

1979111400121 . 

CESSNAI72M 

LYCO320E2D 

MA4SPA 

CESSNA n2 M 

LYCOS20E2D 

FACET MA4SPA 

ENG WOULD NOT DEVLOPE MIN RPM ON RUN UP FOUND PRI VENTURI WARPED AND BUIUW 

105136 

CRUISE 

4 

7322 

CARB 

ENGINE STOPP UNSCHED 

FLUIDLOSS 

FUELCONTROUCARBURETOR 

LEAKING 

1980013100060 

CESSNA 172M 

LYC 03SiDE2D 

FACET MA4SPA 

17263800 

CK1602 

17264791 

4108327A 

CKI1758 

17262763 

L4914I27A 

CK714S04 

N1937V 

1891 

1891 

N61774 

1670 

1670 

Ni3440 

203 

203 

LOST PWR IN FLT.FOUND FUEL LEAKING THRU CABS THR0AT5USPECT, STUCK NEEDLE VALVE. 

An airsafety.com Produtit 

Prepared From OmM I FAA Records By. 

A ir Data Research 

9865 Tower View, Helotes, Texos 78023 

210-695-2204 - Fox 2I(M9S-230I k4oeaksolety.eom - www.oirsolely.com 

Printed April02,04 

Pagel l 

Copyriglit 1999,2004 Ak Data Researd) 

>UtR«tils Reserved 
/ ) 

PortNo. 

SfogeOpm 

Severily 

ATA Code 

Remarks 

6O260 

NOT 

PortNorrte 

Nature of Cond 1 

Nature of Cond 2 

. ATA Text 

BUSHING 

OTHER 

Partlocolion 

Prec Proc 1 

Prec Proc 2 

NONE 

Port CondRion 

Rpl CM No, 

Operator . 

SEIZED. 

1991073000048 

A d l MIr/Mdl 

EngiMlr/Mdl 

Prop Mir/Ma 

CrrvT/Mk/Mdl 

CESSNA 172P 

LYCO320D2J 

AdISN AdlRegNo/ . 

EngSN. DMcuRy.Oole . 

PropSN Total Thne-. 

CmiplSN TbneSfaKeO/H 

' 17276720 N66276 

07/02S1 

4 10 

7322 FUELCONTROUCARBURETOR. FACET MA4SPA CK818094 10 

AFTER 10 HOURS OF ENGINE OPERATION AFTER CARBintETOR OVERHAUL, THE THROTTLE SHAFT SEIZED IN THE 

BUSHINGS. 

. 46A33 : VENTURI CARBURETOR DISLOCATED CESSNA I72P - 17276889 N6e729 

TAKEOFF OTHER UNS(^ED 1991102600046 LYCO320D2J Ll24e339A .10/D2S1 

4 . 3686 

7322 FUELCONTTtOUCARBURETOR PREAIRMA4SPA . CK817638 1628 . 

THE TWO PIECE PRIMARY VENTURI P/N 46-183 SEPARATED FROM THE CARBURETOR AND TRAVELED THROUGH THE 

INDUCtlON SYSTEM. LODGING UNDER THE NR 2 CYUNDER INTAKE VALVB CAUSING LOSS OT POWER ON TAKEOFF 

RBSULTlNaiNTWOFATAUTIES. PREaSION AIRMOTTVE HAS A SB MSA-2 DATED 10-16-90 FOR INSTALLING A ONE-PIECE 

PRIMARY AND MAIN VENTURI WHIOl HAD NOTBEEN COMPLIED WITH, RECOMMEND A CHANGE OFTHIS SB MSA:2 TO AN 

AIRWORTHINESS DiRECTTVE. THERE HAVE BEEN OTHER OCCURRENCRS OF THE TWO PIECE VENTURI FAILURES IN 

VARIOUS MAKES AND MODELS OF THESE CARBURETORS. . " 

131621 THROTTLESHAFT CARBURETOR WORN CESSNA 172P. 17274852 N64086 

INSPMAINT OTHER NONE 1992050100110 LYCO320D2J 03/2eS2 

4 1160 

7322 FUEL CONmOUCARBURETOR MA4SPA A105I3S 0 

CARBURETOR WAS REM()VED TO COMPLY WTTH SB. WO N INSPECTION, THE THROTTLE SHAFT WAS FOUND TO HAVE 

EXCESSIVE WEAR. . •. ' ' . 

46A2 VENTURI CARBURETOR WORN CESSNA 172P 17275980 N66213 

INSP/MAINT OTHER NONE 1992050600054 LYCO320D2J . L1261439A 03/27/92 

4 2000 

7322 FUEL CONTROUCARBimETOR FACET MA4SPA CK814d51. 0 

IN THE PROCESS OF DOING PRECTSION AIRMOTTVE CORPORATION'S SB MSA-2R1 CONCERNING VENTURI FAILURE, FOUND 

PRIMARY AND MAIN VENTURI (MAKEIIP VENTURI) NEAR FAILURE. 

46AS8 

INSP/MAINT 

4 

7822 

30766 

INSP/MAINT 

VENTURI CARBURETOR 

OTHER NONE 

FUEL CONTROUCARBURETOR 

FLOAT CARBURETOR 

FLUID LOSS NONE 

WORN 

199i0906000S 

PINHOLE 

1993062S0006S 

CESSNA 172P 

LYCO320DaJ 

FACET MA4SPA 

CESSNA 172P 

LYCO320D2J 

17275980 

L1261439A 

CK814961 

17276826 

metii 

03Q7a2 

2000 

0 

N88FR 

06A)7i»3 

4 1617 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CK8171C9 0 

REPORTED FUEL LEAK AROUND AIRCRAFT INSPECTION REVEALED PARBURETOR LEAKING. DISASSEMBLY AND 

INSPECnON FOUND METAL FLOAT HAD A SMALL PIN HOLE AND FIL1£D UP WTTH FOm. AND STINK. FLOAT HAD RUBIBED 

INSIDE OF CARBURETOR BOWL CAUSING DEFECT. FLOAT MANtfl»ACTinUER« DATE 4-84.. 

CF90766 FLOATTAB CARBURETOR LOOSE CESSNAI72P ' 17274925 N54219 

INSPMAINT FLUID LOSS NONE 1993070800072 LYCOS2iob2J . RL1173639 06/08/98 

4 .'•'• • 110 ' 

7322 FUELCONTROUCARBURETOR FACET MA4SPA CF410063 0 

DURING PREFUGHT OF AIRCRAFT. PILOT NOTICED FUELPUDDUNG UNDER (XlWUNG. PULLED. CARBURETpR AND SENT 

TO OVERHAULER. POUND TAB ASSEMBLY ON FLOAT TO BE L(X>SE.AUjOWING NEEDLE VALVE TO COCK AND NOT SHTTP 

OFF FUEU OVERHAULER REPLACED FLOAT ASSEMBLY, NEEDLE AND SEAT. THIS F1X)AT THAT WAS REPLACED WAS ' 

REPLACEMENT FLOAT FOR AD92.T6^16 AND WAS INSTAIJED IN JULY OiF 1992. iSAME AIRCRAFT HAD SIMILAR PROBL ^ IN 

DECEMBER; 1991. CWiBURETOR WAS WARRAimKD BY CONSOLIDATED FUEL SYSTEMS AT TTUTTTJ ^ 

EXPLANATION OFTHE CAUSE. SUBMITTER SUSPECTED Fi:X)AT ASSEMBLED FROM CONSOUDATED HAVE AN ON^ ^ . 

MANUFACTURING OR QC PROBLEM. 

Printed Aprii02,04 ' ' An airsafety.com Product 

Page 32 .. Prepared from Ofdcidl FAA RecordsBy. 

A i r Data Research 

9865 Tower View, Hekjtes, Texos 78023 

210-695-2204-Fox 210-695-2301 info«oksofety.com - www.oksoletyxom 

Copyrigl« 1999,2004 Ak Data Researctt 

ACFOght^ Reserved 
{ ) 

Port No. 

Sloge Opm 

Sevcrihr 

ATA Code 

Remortts 

Port Nome 

Nature ol Condi 

Nature bIConda . 

ATA Text 

PorttocoSon 

PrecProc 1 

Prec Proc 2 

PoilCoodHlon 

RplCMNo. 

Operator 

AdlAAIr/Mdl 

Eng Mk/Mdl. 

Prop Mfr/Mdl 

CmptiMk/Md^ 

AdISN 

Eng SN 

PropSN 

CniplSN 

• . - • • 

Acll Reg No. 

OMIcullyDale 

TolalTlme 

TkneSbKeO/H 

78A11Q WASHER BODYTO LOOSENS CESSNA 177 17700710 N34.10T 

NOT OTHER NONE 1987011400006 LYCO320E2D Il/IT/M 

4 ••.-. • 0 • • 

7322 FUELCONTROl/CARBXJRETOR PACETMA4SPA : a t 

ALL FOUR SCREWS (»l THROTTLE BODY TO BOWL WERE LOOSE. SIJBMITTER BEUEVES LOCK TAB WASHSR^JSUPPUBD BY 

MARVELSCHSBLERTOBKIN8UFPiaENrASTTAIXOWSi5C3(EWTOTTIliN.2aTTiRNBACkAFTERTi . 

LOCHNQ. REPLACED SCREWS WITH roiUED TYPE AND SAFETY WIRES. 

S122219 . CONTROLCABLE THROTTLE CRACKED CESSNA 177 17700842 N2942X 

INSP/MAINT OTHER NONE 1995072800378 dT/lSSS 

4 1419 

7003 POWERLEVER PACETMA4SPA A12128U 0 

DURING A SCHEDULED INSPECTION. FOUND THROTTLE CABLE BENT AND CRACKED AT THE BEH D LOCATED ATTH E 

THREADED END WHERE THE ROD END ATTACHES TO THE (MBLE. IT APPEARED WHEN THE THROTTLE BIT TTS STOP, THE 

THROTTLE CABLE CONTINUro TO BE PUSHED. THE CABIJHADTI? BE REPLACED WHI(?HiS^^RYCOSTlj^ • 

9292 SH/UTFLOAT CARBBOWL MFGWRONG CESSNA 177B . 17701790 .NS4 U 

INSP/MAINT INADEQUATEQ NONE 1981100100062 LYCO320D3G 91<(989A' 

• 4 •••.•• . .•'.••• • 0 ' • 

7822 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 13641 . 0 

AT CARB OVERHAUL SHAFT-FLOAT LEVER IN REPAIR KIT 286-1690 WAS FOUND CRIMPED ON SAME SltB AS COTTER PIN 

HOLE. 

CUMB ENGINE STOPP UNSCHED 

4 

7322 FUELCONTROUCARBURETOR 

ENG QUIT AFTER T/O. CARB REPALCED, ENG RAN OK. 

INOP 

1986072600047 

VARGA 21&0AMORISY 

LYC O320A2C 

SNSNCH 74DM 

FACET MA4SPA 

VACl6e79. N8364J 

LR912727A 

A48616 1082 

CK7I3649 1082 

( V INLET CAP 

FLUIDLOSS 

CABURETOR 

NONE 

CRACKED 

1993092800040 

VARGA 2150AMORISY 

LYC OS20A3C 

VAdllilTS Na27SJ. 

INSP/MAINT FLUID LOSS NONE 1993092800040 LYC OS20A3C OS^OISS 

4 . • , . . 766 ', 

7322 FUELCONTROUCARBURETOR FACET MA4SPA . CKS10447 0 

DTJRING ANNUAL INSPECTION, FOUND HEAVY STAINING AND WETNESS ON CAP. REMOVED CAP AND CLEANED WTTH 

l^CQUER TIDNNER. FOUND 2 SMALL CRACKS ON CAP FUU40E THAT EXTENDED BEYOND RADIUS AND INTO BOTVb PART 

OF CAP, APPROXIMATE LENGTH OF CRACKS .1250 INCH. REPLACED CAP. GASKET AND LOCK TAB WASHERS PORTHE TWO 

ATTACHED SCREWS. SUBMriTER STATED POSSIBLE CAUSE WAS OVERTQRQinilNG SCREWS PREVIOUSLY TO STOP FUEL 

SEEPAGE - • . • - . - • • . • • 

VALVE FLOAT BOWL STUCK OPEN BLANCA 7GCAA 36178 N2666Z 

NOT WARNINGINDI NONE 1982011400073. LYC0320A2D L4776227A 

* .•'.'• . 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA A4020603 0 

THE FLOAT VALVE IN CARB STUCK OPEN CAUSING EXTREMELY RICH MIXTURE AND SEVERE LOSS OF POWER. 

INSP/MAINT 

4 

7322 

FLUIDLOSS NONE 

FUEL CONTROUCARBURETOR 

LEAKING 

1986112600184 

BBAVIA 7GCAA 

LYC 0320/ 

FACET MA4SPA 

FUEL LEAKING OUT OF CARB COVERED T-HANGAR FLOOR. AC USING AITTO GAS. 

A30769 

INSPMAINT 

4 

7322 

FLOAT 

OTHER NONE 

FUEL CONTROUCARBURETOR 

SIMILAR TO PROBLEM DESCRIBED ALERTS. 

HEAVY 

1984050700042 

BBAVIA 7GCBC 

LYCOa20A2D 

SNSNCH 74DM 

FACET MA4SPA 

34177 

79876, 

L3866227A 

A38I7984 

M42I3Y 

249 

249 

N866iy 

1521 

i6ii 

Printed April 02.04 An airsafety.com Product ~ 

Page 34 Prepared From Officiol FAA Records By: 

Afr Data Research 

9865 ToWer View. Hetotes. Texas 78023 

210695-2204 - Fox 210-695-2301 kdoeoksofety.com • wvnv.oksotetyx:om 

Copyrigl« 19^9,2004 AkOataResearcti 

' AIRigMs Reserved 
r 

r 

r 

r 

r 

r 

Port Na Port Nome 

Stage Opm Nature of Cond 1 

5eve<Sy Nohiie ol Cond 2 

ATA code ATA Text 

Remortu 

INSPMAINT OTHER 

4 

Port location 

' Prec Proc I 

Prec Proc 2 

INLET BOSS 

NONE 

7322 FUELCONTROUCARBURETOR 

CARB CRACKED AT INLET BOSS 

30769 FLOAT 

INSP/MAINT OTHER 

W 

CARB 

NONE 

7322 FUELCONTROUCARBURETOR 

Part CondMon 

RplCMNo. 

OperolM 

CRACKED 

19790830000S3 

INEFFECTIVE 

1978062000130 

FLOAT DOES NOT FLOAT AT A PROPER LEVEL CAUSING OVERFLOW. 

Adl Mk/Mdl 

Eng Mk/AMI 

Prop AMr/Mdl 

CmplAUt/Mdl 

BEECH A2319 

LYCO320E2B 

FACET MA4SPA 

GULSTMAA6 

LYC 0320/ 

MARVELSCHEB MA4SPA 

•••• • 

AcftSN 

EngSN 

PropSN 

Cn^SN 

MB283 

40I462I 

AdI.Reg No. 

OmculyDpl* 

Total Tknr 

Ttme.Skice O/H 

N6906Q 

2975 

2976 

N964IL 

1768 

1766 

VLV-SEAT WORN GULSTM AA5 AA60466 N7I6OL 

APPROACH ENGINE STOPP OTHER 1980070700033 LYCO320E2G LS679427A 

4 1244 

7322 FUELCONTROUCARBURETOR MARVELSCHEBMA4SPA BL209760 1244 

DURING APPROACH ENG LOST POWER + QUIT FOUND CJARB NEEDLE VLV + SEAT WORN 

30789 FLOAT 

NOT OTHER .' NONE 

4 

7322 FUELCONTROUCARBURETOR 

FLOAT HEA'VY SAME AS IN ALERT NR 67. 

TOO HEAVY 

1984061800029 

OULSTMAASA 

LYC O320B2Q 

FACET MA4SPA 

AA5A0144 N9744U 

L4484027A 

1346 

1S4S 

ENGINE 

SANK 

1985092600096 

OULSTMAASA 

LYC O320E2D 

FLOAT AA5A0605 N267S7 

TAXI/GRND FLAME 

4 FLUIDLOSS 

732*. FUra, CONTROUCARBURETOR FACET MA4SPA 

OWNER REPORTED ENG CAUGHT TOIE DURING ATTEMPTED START. FOUND FLOAT ABSORBED FLUID AND SANK. 

r 

r 

r 

r 

r 

r 

r 

r 

FLOAT CARB HEAVY GULSTM AA5A AA6A0717 N26764 

NOT ENGINE STOPP OTHER 1987112S06TC8 LYCO320E2G L48S4427A 10a6«7 

4 1192 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 1192 

ENGINE FAILURE RESULTING FROM PARTIALLY SUNKEN FLOAT. ENGINE OPERATING ON AUTO FUEL S/R A1-84A DATED 

504. REPLACEMENT OF COMPOSITE CELLULAR FLOAT WITH METAL FXXIAT KTT NOW. AD NOTE 66^05-04 Rl (EFFECTIVE 

10-2-86) WAS NOT OOMPUED WTTH. 

MBSIO . N223ZL 

L462iB127A 

666916 FLOAT DRFECTTVE VEBJCR Bt9 

CUMB PARTTALRPM/ UNS(3IBD 1984112100023 LYCO320E3D 

. * • ' ' • • . 0 : 

7822 FUELCONTROUCARBURETOR . FACETMA4SFA CK3S199 . 0 

PARTIAL POWER LOSS. FOUND CARB FLOAT HAD ABSORBED FUEL AND WAS TOO HEAVY TO CLOSE NEEDLE VALVE. 

• CARBURETOR NEEDLE FLOODED BEECH B19 MB680 miSTW 

CRUISE ENGINE STOPP UNSCHED 1993081800062 C0NTIO360E L39itT427A O8A02AS 

4 . • • 0 -

7322 FUELCONTROUCARBURETOR FACET MA4SPA 6683 0 

ENGINE LOST POWER IN FUGHT RESULTING IN AN OFF AIRPORT LANDING. THELOSS OFPOWERWASTRAmiTO AN 

IflflJSUAL STTUATION WHERE TH^ NEEDLE VALVE WAS BEING HELD OPEN BY TWO SMALL PIECES OP THREAD THAT HAD 

BROKEN OF F THE FEMALE RECEPTACLE FOR THE FUEL INLET SCREEN AND WORKED THEIR WAY INTO TT^ 

VALVE CHAMFER- SINCE THE VALVE COULD NOT SEAT, EXCESSIVE FUEL FLOODED THE BOWU FLOODING THE ENGINE, 

SUBMITTER RECOMMENDED WHEN REMO'VINOAND REINST/OUN G CARBURETOR INLET SCREENS, EXEROSE CAIUB NOT 

TO DAMAGE THE THREADS. 

Printed /Vpril02,O4 

Page35 

An airsafety.com Product 

Prepared From Omrdol FAA Recorcis By. 

Air Data Research 

9865 Tower View. Hetotes, Texas 78023 

210-695-2204 - Fox 210-695-2301 kilodoksotety.com - wvs^.o'rsofety.com 

Copyrigttf 1999.2004 Ak Data Researcli 

AlRlgtris Resened 

%U 
('•~ ) 

( ) 

PolNa 

SloOeOpm 

Severity 

ATA code 

Jtemorfc* 

INSPAfAiNT 

W 

7322 

Port Nome Port location PortCondiHon 

NotvreolC^ I PrecProcI RplCMNo. 

Nature of Cond 2 Prec Proc 2 Operator 

ATA Texl 

DRAIN PLUG SEIZED 

OTHER NONE I97e0229«b0$6 

FUELCONTROUCARBURETOR 

Adl Mfr/Mdl 

Eng«Wr/Mdl 

Prop Mfr/Mdl 

CmpI/Mk/Mdl 

PIPER PA28140 

LYCO320B2D 

ActlSN 

EngSN 

PropSN . 

CmplSN 

2a712S4«S 

L2948627A 

MARVRI.SCHEBMA4SPA BLI04839 . 

AdlRegNo. 

OMcuRyDole 

TotalTlnM 

Time Since O/H 

N3&49T 

0 • 

0 

CARBURETOR DRAIN PLUG IS SEIZED CAN NOT BE REMOVED USING NORMAL METHODS WITH ALL EN WRENCH 

CRUISE 

W 

7322 

PARTG IXroSB 

OTHER NONE I97604O5O0OS6 

FUELCONTROUCARBURETOR 

PIPBRPA28140 

LYG0320E2B 

MARVELSCHEB MA4SPA 

ENQ ROUGH DUE TO CARB BEING LOOSE AT THE PARTING SURFACE GASKET. 

233616 

TAKEOFF 

W 

7322 

NEEDLE VALVE PLASTIC TIP DISTORTED 

VIBRATIONffiU UNSCHED 1976122100031 

OTHER 

FUELCONTROUCARBURETOR 

PIPERPA28140 

LYCO320E3b 

MARVELSCHEB MA4SPA 

287626012 

L4288727 

287626224 

U664i27A 

N4238X 

. 347 

.347 

Nohsj 

403 

403 

ENQ BECAME ROUGH 4 LOST POWERINVESTIGATTON REVEAIED PLASTTTC TTP OF NEEDLE VALVE MSTORTEDJSNO 

FLOODEDJ»RBVFlRE . 

30760 

UNKNOWN 

W 

7322 

FLOAT BROKEN 

OTHER • OTHER 1977062700041 

FUELCONTROUCARBURETOR 

PART OP CARB FLOAT FOUND BROKEN OFF 

PIPERPA28140 

LYC O320E2A 

MARVELSCHEB MA4SPA 

287126028 

L28(S142TA 

3991363 

2600 

600 

WORN 

1978050400054 

PIPER PA2S140 

LYC O320E2A 

29199 CUP FLOAT 287426436 N44663 

caiinsE ENGINE STOPP NONE 

W 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEB MA4SPA 0 

DUlONG FLTENG QUIT FOUND CUP WHICH ATTACHES TO FLOAT AND NEEDLE VALVE WORN WOULD NOTUF? VALVE 

FHOMCLOSROPOS 

10367832 

INSP/MAINT 

4 

7322 

ARM SHAFT 

OTHER NONE 

FUEL CONTROUCARBURETOR 

LOOSE 

1979031900036 

FOUND THROTTLE ARM LOOSE ON THE SHAFT AD 72:08-08 PCW 

30769 

NOT 

4 

7322 

FLOAT CARBBOWL 

VIBRATIONffiU NONE 

FUEL CONTROUCARBURETOR 

ENG RAN ROUGH FOUND CARB FLOAT SUNK 

80760 , 

INSPMAINT 

FLOAT CARBURETOR 

OTHER NONE 

SUNK 

1983011800267 

TOO HEAV 

19830126000(n 

PIPER PA28140 

LYCO320E2A 

FAQBTMA4SPA , 

PIPER PA28140 

LYCO320E3D 

MARVELSCHEB 

PIPER PA28140 

LYCO320E8D 

2826610 N8202N 

• 0 : 

A2214062 0 

282C806 N6697W 

Ul7aS27A 

.202 

2Qia«38 202 

L829n27A 

4 

7322 FUELCONTROUCARBURETOR 

DURING CARBURETOR OVERHAUL FOUND FLOATTO WEIGH 22.22 GRAMS. 

MARVELSCHEB MA4SPA BL2097BO 0 

MAXIMUM WEIGHT IS 20 GRAMS. 

A<GA33 VENTURI WARPED PIPER PA28140 

INSP/MAINT OTHER OTHER 1983082600073 LYCO320E2A 

< • • 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 

POSSIBLY RESULT OF HOT START AND SMALL CARB FIRE. 

2825649 . N8804N 

L2438827A 

• 0 

A2II35S8 0 

PrirtBd Aprita2.04 

Page40 

An airsafety.com Product 

Prepared From Officfal FAA Records By. 

A ir Data Research9865 Tower View, Helotes, Texos 78023 

210^695-2204 - Fox 210-695-2301 k»(o®aksofety.com - wv/w.ioirsalety.com 

Copyright 1999,2004 Ak Data Research 

AIRiglils Reserved 
r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r 

r; 

r 

r 

n 

PortNa 

Stage Opm 

Severily 

AIA Code 

Rcfnofks 

PortNorhe 

Nature of Cond T 

Nature of Cond 2 

ATA Texl 

Portlocolon PortCondRion 

Prec Proc 1 Rpl CM No. 

Prec Proc 2 Operator 

BECOME ENLARGED. AND PREVENT PROPER TIGHTENING. 

165301 

CRUISE 

M n CONT ARM 

ENGINE STOPP 

CARB CAME OFF 

"UNSCHED 1987072800016 

A d l Mfr/Mdl 

Eng Mfr/Mdl 

Prop Mfr/Mdl 

CmpI Mk/Mdl 

PIPER PA28160 

LYCO820A2B 

AdISN AdlRegNo. 

EngSN Difficulty Dole 

PropSN. Tofoilkne 

CmplSN nme Since O/H 

N6P69W 

0&/11A7 

2878. 

4 .-.••. . 

7322 FUELCONTROUCARBURETOR FACET MA4SPA A41276 339 

THE MOCCCSTTROL ARM CAME OFF OF SHAFT CAIISING CARB TX) GO T« IDLE CniT OFT. THE AA : MADE A POmSR OFF 

LANDDN : A T A SMALL AIRFIELD WITH.NO DAMAGE OR INJURIES BEING SUSTAIHED. UPON INSFfiCtlON FOR CAUSE. THE 

ARM WAS FOUND ATTACHED TO CABLE BUT DANGUNG UNATTACHED FROM CARB. WTTNESS MARKS ONARM BUSHING -

AND SHAFT SHOW ONLY HALF OF GRIP LENGTH ENGAGED. ALSO, SUBMHTER WAS imABLE TO LOCATE TENSION SPRING 

AND SAFETY CU P IN THE AK;. SUBMrTTER SUGGEST^ INSP PROCEDURES INCLUDE A VISUAL CHECK FOR PROPER 

POSITION OF ARM AND SUFFICJENP ENGAGEMENT FOR RETENTION. 

I036783S CARBURETOR HALVES SEPARATED PIPERPAZ8I60 28909 N5677W 

INSP/MAINT PARTTALRPM/ NONE 199S11220QI86 LYCO320A2B 10/29A3 

:* ^*« ' 

7322 FUELCONTROUCARBURETOR FACET MA4SPA 0 . 

AIRCRAFT EN(UNE NEEOED.LEANINO TO OBTAIN MAXIMUM-RPM AT SEA LEVEL. WOULD NOT SHUT DOWN. CLEANLY AND. 

CXJULD NtJTBB ADJUSTS . AFTER INSPECTTON, CARBURETOR WAS FOUND TOBE SBPAJUTTNOATTHEOT 

LOWER HALVES WHERE; ATTACHED. SCREWS THAT HELD HALVED .tOGETHERWE ^ INSTALLED WTTH ORIGINAL SAFETY 

WIRE.- BOTH OF TTSflOLES SHOWED SIGNS OF EL($NGATT6 N AND STRIPFINd. SUBMnTER ANALYSIS 1$ OIH AOE AND 

..rAi^n'DF VIBRATION CAUSED PART TO FAIL. RECOMMEND INSRECTTON^F CARBURETOR EVERY 100 HOURS AFTER 2,800 

HeNQiR^:£XPTBi^m^iRVICE;.''NO SIGNS OFFlIELLEAKAOB NOT ^ 

36640 

TAXI/GRND . 

4 

7322 • 

CHECK VALVE 

FLAME ENGINE 

SMOKE 

FUELCONTROUCARBURETOR 

WORN 

197809O7OOII7 

PIPER PA28161 • 

LYCO320D3G 

287816180 

MARVELSCHEB MA4SPA CK48240 

NS8822 ' 

222 

222 

FOUND EARS ON CK VALVE LOOSE & WORN CAUSING WEAR IN THREADS CARB BOWL LEAMNO FU EL CAUSING FIRE 

CRinSE 

7322 

FLOAT 

ENGINE STOPP OTHER 

FUEL CONTROUCARBURETOR 

STOCK 

1979062500061 

FLOAT STUCK FLOODING ENG. CUASING IN FLT FAILURE ' 

J9468I 

INSP/MAINT 

7322 

PUMP PLUNGER ACCELERATO 

OTHER NONE 

FUELCONTROUCARBURETOR 

PLATING FLAKE 

1979071300072 

PIPER PA28161 

LYC O320DSG 

FACET MA4SPA 

PIPER PA2S161 

LYCO320D8G 

FA(;E'I'MA4SP A 

INSP FOUND CARB ACXXLERATOR PUMP PLUNGER PLATTNO FLAKING OFF 

16A107 

APPROACH 

4 

7322 

GASKET 

VIBRATIONffiU UNSCHED 

INADEQUATEQ 

FUEL CONTROUCARBURETOR 

CUT . 

1980100300073 

PIPERPA28161 

LYCO320D3G 

MARVELSCHEB MA4SFA 

287916063 

L856SS9A 

CK611628 

CK61I87 

287916808 

L918439A 

CK7I646T 

N22179 

90 

90 

N2FOR 

260 

260 

N2884N . 

798 

798 

ENG ROUGH + WOULD ONLY RUN ATIDLE SPEEDS.FOUND PIECE OF GASKET INSIDE CARB LODG ED IN P/N 47-828 N07XIK 

A233616 

TAXWJRN D 

7322 

NEEDlE•^SEAT TIP OF 

FLAME NONE 

FUEL CONTROUCARBlrilETOR 

GROOVED 

1981070800077 

PIPER PA28161 

LYC O320D3G 

287816637 

L840439A 

MARVELSCHEB MA4SPA CK610W1 

N36451 

375' 

375 

CARB FLOODED BEFORE START RESULTING IN COWL FIRE. CAUSE NEEDLE + SEAT DID NOT CL OSE QFFFVJ^U 

Printed April02,04 

Page45 

An airsafety.com Product 

Prepared From Official FAA Records By: 

A i r Data Researc h 

9865 Tower View, Helotes, lexos 78023 

210-695-2204 -Fox 210-695-2301 inloeciksotety.com - wvnv.oksofetyxom 

Copyrigtil 1999,2004 Ak Dab Reseaitti 

AIRigl«sRe|sen«d 

^'v i 
PortNo. 

SfogeOpm 

Severily 

ATA Code 

Remarks 

TABS. 

Port Nome 

Nolure olCond 1 

. Nature ol Cond 2 

ATA Te?(l 

Port location 

PrecProc T 

Prec Proc 2 

PortCondRkm 

RplCMNo. 

Operator 

A d l Mfr/Mdl 

Eng Mfr/Mdl 

Prop Mfr/Mdl 

Crivl Mk/Mdl 

AdISN AdlRegNo.- -

tngSH fimciMyOplc. 

frop.SN TotalTkii» 

CmpI SN Tkne Shice O/H 

( ] 

MDCTURE 

OTHER 

SEPARATED 

1975080100041 

PIPERPA28180 

LYCO360A4A 

ACnVATTNG ARM 284929 N6497J 

CtOJlSE OTHER 

W AFFECTSYSTE 1850 

7322 . FUELCONTROUCARBURETOR . MARVELSCHEB MA4SPA 1360 

DURING FUGHT CARB MIX OONT ACTNATim ARM SEPARATED FROM THE SHAFT.THS BOSS IN THE ACT ARM UPPER END 

WASELONQATED ' ' ^ _ 

106217 CARBURETOR BOWL DRAIN LEAKING PIPER PA2818q 287226669 NlSOBO 

INSP/MAINT FLUIDLOSS NONE 1997061500398 LYCOSlMDSG L2262227A OS/DIAT 

4 • " 0 

7322 FUELCONTROLrtMlBimETOR MA4SPA 0. 

' TWO BOWL SCaiBWSLEAiaNG. FllEL BOWL DRAIN LBAKn<IG. BOTT0M'OF<MRBURETOR SMALL HOUSING OF 

ACCELERATOR PUMP LJBAKINQ. VERY POOR QUAUTY ASSURANCE. SUBMTTTER STATED ALSO SAME PROBLEM ON AN 

OVBRHAULEDMODBL-SAMEP/N, 1»8217. ' - • . - ' 

MA4SPA1.05217 CARBURETOR 

NOT FLUID LOSS 

4 

732* FUELCONTROUCARBURETOR 

FUEL LEAKINO PROM BODY OF CARBTJRETOR WHEN ENOINB IS SHUT DOWN, MIXTURE VHIY RICH. TOTAL TTME ON UNIT 

IS (0). CARBURETOR REM'OVED FOR WARRANTY. OVERHAULED CARBURETOR INSTAUED. GROTIND OPERATION CHECKED 

NORMAL. ^ • 

ENGINE 

OTHER 

JRETOR 

LEAKINQ . 

2002031600121 

VJ3R 

PIPERPA28181 

LYCO960A4M 

2843204 N4180W 

RL37Q40<« 02Q7/D2 

0 

12B67 THROTTLE ARM CARBTHIBTOR HOLE MISLOCATED ROBSIN R22BBTA 1055 N2FOR 

INSP/MAINT INADEQUATE Q NONE 19890719000CB 06n6«9 

4 • 0 • 

7322 FUELCONTROUCARBURETOR FACET MA4SPA D<^3308 0 

MANUFACTURING DEFECT ON NEW PART WHERETHE THROTTLE SHAFT HOLE WAS MACHINED APPROXIMATKLY aO20 

INCH ECCENTRIC TO THE CENmR OP THE SERRATTON PATTERN. THIS CAUSED THE TWO SERRATED PARTS TO BE OUT OF 

EN0AGEMEOTANDTHEPARTSW0ULDN0TU)CKTOGBTHBRWH£NCMMPRI>WITHtHE81-31lNUT. . 

106018 BOWL MISMANUF;ACTURB ROBSIN R22BETA 1413 N2FOR 

INSPMAINT INADEQUATEQ NONE 199009120oi« LYC;0320B2C MHMOO . 

4 0 

7322 FUELCONTROL/CARBURETOR FACET MA4SFA DC46410 0 

PUMP DISCHARGE CHECK VALVE ASSEMBLY (P/N 36-640) POUND TO BB.<3tOSS THREADED OR THE B0WL'(P/ N 10-6018) WAS 

MACHINED OUT OF SQUARE SUCH THAT A GAP OF .016 INCH ON I SIDE OF P/N 16^B46 COPPER GASKET EXISTS. THIS 

CAUSED A STEADY FUm> LEAK AT ALL TIMES. THIS IS ANEW UWT. 

29194 FLOAT VALVE SPRING CUP DEFECTIVE AMTRRV4 1650 N22DD 

INSP/MAINT OTHER NONE 1999062200062 LYCO320E8D RL319692T 0S/18AS 

4 • 160'. . . 

7322 FUELCONTROUCARBintETOR . FACETMA4SPA BL16S669 0 

I ^ W DESIGN FLOAT AND VALVE ASSEMBLIES USED WIRE RETRACTTON DEVKX TO PROVIDE POSnrVE RETRACnON OF 

THE FLOAT VALVE NEEDLE. THE SPRING WIRE CUP IX>ESNOTAPPEARSTTtONG ENOUGH TO POSITIVELY RETRACE 

NEEDLE VALVE FROM SEAT. IHI S PROBLEM CAUSED THE LOSS OF ENGINE OUTPUT. 

INSP/MAINT 

w 

7160 

FILTER 

OTHER 

AIRINTAKE 

AIRINTAKE DETERIORATED MOONEY STCM20 1137 

LYC 0320/ L708827 

MARVELSCHEB MA4SPA 3986672 

REFER TO SreSA69NW PIECE OF FILTER LODGED IN VENTURI RICH MIXTTfllE AND ROUGH ENG N FUPHT 

RJ024IO 

TAKEOFF 

W 

7160 

CARB AIR BOX 

OTHER 

AFFECTSYSTE 

AIRINTAKE 

WEB BROKEN 

NONE 1974090600032 

PIPER STCPA23 23412 

LYCO320A3A 40527 

MARVELSCHEB MA4SPA 

N5274B 

170 

770 

N203S 

178 

178 

ENG POWER LOSS DUB TO WEB BROKEN IN CARB AIR BOX SnCKING IN CARB THROAT£ARB Al R BOX IS STC INSTL WITH 

RAJAYTUHBO \ 

Pikiled /Vprii 02,04 

Page 48 

An airsafetyJcom Product 

Prepared From OmcMI FAA Records By. 

A ir Ditta Research 

. 9865 Tower View. Hetoies. Texos 78023 

21(^695-2204 - Fox 21<>69S-2301 inloeoksofety.com - www.oirsafely.com 

Copyright 1999,2004 Ak Data Researeti 

Af/^MsRaMrved 

•CQ J 

J 
/ 

~) 

PortNo. 

StoaeOpns 

ievetHy 

ATA Code 

Remorics ' 

Part Nome 

Nature ol Cond i 

Nature ol Cond 2 

ATA Text 

Part Location 

Prec f IOC 1 

Prec Proc 2 

PortCondmon 

RplCMNo. 

Operator ' 

Adl Mfr/Mdl 

Eng Mfr/Md. 

PropAUr/Mdl 

C n ^ Mfr/Mdl 

AclS N 

EngSN 

PropSN 

CmplSN 

Acfl Reg No. 

CMicutyDale . 

Total %n# . , 

Tkne Skice O/H . 

S122219 CONTROL THROTTLE CRACKED CESSNA 177 17700342 N294ZX 

INSP/MAINT OIHER NONE 199S072800378 07/13/96 

4 T41S 

7603 . POWERLEVER FACErMA4SPA A1112310 0 

DURING A SCHEDULED INSPECTION, FOUND THROTTLE CABLE BENT AND CRACKED ATTHE BEND LOCATED AT THE, 

THREADED END WHERE THE ROD END ATTACHES TO THE CABLE. TT APPEARED WHEN THE THROTTLB HIT TTS STOP. THE 

THROTTLE CABLE CONTINUED TO BE PUSHED. THE CABLE HAD TO BE REPLACED WHICH IS VERY (XJiglLY. 

STD1763: PAL NUTS 

INSP/MAINT OTHER 

4 INADEQUATEQ 

7322 FUELCONTROUCARBURETOR 

PAL NirrS MISSING ON CARB ATTACH NUTS. 

CARB ATTACH MISSING 

NONE 1985112900116 

CESSNA 172P 

LY(TO320D2J 

MCAULY 1C160DTM 

FACET MA4SPA 

172161482 N12aEB ' 

Lis«g639A lont/es 

e57VBt31 0 

CKtlSSS 0 

A30628 

INSP/MAINT 

4 . 

7322 

FIJOAT/LEVER 

OTHER 

CARBBOWL 

NONE 

BROKEN 

1981122300030 

FUEL CONTROUCARBURETOR 

PIPER PA18160 . 

LYC032QA2B 

MARVELS(aiEB ' 

187S93 . ' N3839Z 

L1196027 

0 

3990949 0 

THE FLOAT AND LEVER ASSEMBLY PN A30-628 SEPARAT'ED AT LEVER. PARTS FEU, INTO BOTTOM OF BOWU 

233615 VALVE 

LANDING FLAME OTHER 

4 FLUID LOSS 

7322 FUEL CONTROUCARBURETOR 

SCORD PIPER PA28151 

1985073100072 1.YC 0320E3D 

FA<?ET MA4SPA10eQ09; 

287716128 N6418F 

L4a4027A 

928 

BL2214176 928 

JUST AFTER TOUfMDOWN THE ENG STALLED. ON RESTART ATTEMPT CARB HEAT BOX CATKJHT FTRE FOW^DSrUCK 

VALVE IN FUEL BOWL. 

AS0759 . FTJOAT BOWL SATURATED 

. INSP/MAINT FLinDLOSS NONE 1981043000047 

( ) . 4 . 0 

7322 FUELCONTROUCARBURETOR MARVELSCHEB 81^9783 0 

CARB REMOVED FOR LEAKING. FLOAT WEI(»IED 30.7 GRAMS. NEW FLOAT WEI(3HED 1X6 GRAMS 

106018 BOWL LOOSE CESSNA 172N 1726801$ N7S879 

NOT OTHER NONE 1981022300211 LYCO320H2AD RLUTTe 

4 1452 

7322 FUELCONFROUCARBURETOR MABVELS(3HEB CKM900 1462 . 

CARB BOWL HOUSING LOOSE ORIGINAL LOCK WASHERS STIIX IN TACT. ENG WOIRJ) SHITT OFF WTTH ONLY MINIMAL 

CONTROL MOVEMENT . 

.131521 

INSP/MAINT 

4 ' 

7322 

SHAFT THROTTLE 

OTHER NONE 

FUEL CONTROUCARBURETOR 

WORN/EXC 

1982121300040 

CESSNA 172N 

LYCO320H2AO 

MARVELSCHEB 

EXCESSIVE PLAY IN CARB THROTTLE ASSY. REPLACED THROTTLE SHAFT AND BUSHINGS. 

131521 

INSP/MAINT 

4 

7322 

SHAFT THROTTLE 

OTHER NONE 

FUELCONTROUCARBURETOR 

FOinm CARB THROTTLE SHAFT WORK 

WORN 

1983010400087 

CESSNA 172N 

LYCO320H2AD 

MARVELSCHEB 

1737091T 

L44&476 

CK4884F 

.1726S060 

Ll66e76 

CK36562 

NTSgTR 

638 

836 

t 

N734RG 

1148 

1148 

131521 SHAFTffiUSHI MAIN WORN CESSNA 172N 17212204 N8449B 

INSP/MAINT OTHER NONE 1982121300039 LYC O320H2AD Ls<2076 

4 1301 

7322 . FUELCONTROUCARBURETOR MARVELSCHEB C1612807 1301 

CARB THROTTLE SHAFT AND BUSHINGS WORN BEYOND SETTTNO IDLE FOR SAME RPM EACH TIME CL03H). 

Printed Oecamber 12,02 

Page 87 

An airsafehf.com Product ' 

Prepared From Officiol FAA Recorcis By: 

Copyriglit 1999,2002 Ak Data Research 

Alf«gtilsR«seiv<ad 

Air Data Kesearieh 

13438 Bandera Rood, Suite 106. Heiotei. Texas 78023 . 

21(M95-2204-Fax2HW95'230l kifoOqhofetyxom - www.oiraolety.com 

r 

r 

lB/al/2984 13:51 3034654116 AERD5C0PE INC PAaE 82 

/ IN THE CBRCXnT COURT. SBVBNtH JUDICIAL CIRCUIT, IN AND FOR. 

VOLUSIA COUNTY, FLORIDA 

MARK GODFREY and NICHOLAS 

GRACE, 

Pkintifib, 

vs. 

PRECISION AlRMOnVB CORPORATION, 

ZENITH FUEL SYSTEMS, INC., 

PRECISION AEROSPACE CORPORATION, 

PUROLATOR PRODUCTS COMPANY. 

FACET FUEL SYSTEMS. INC^ FAC8T 

ENTERPRJSBS. INC, FACET AEROPACB 

PRODUCTS COMPANY, MARVBL-SCHEBUBR, 

a. divinon of BORO-WARNER CORPORAT[0N, 

TBLEDYNE CONTINENTAL MOTORS 

AJRCRAFT PRODUCTS, a divisiou of 

TBLEDYNE, INC., and/or ALLEGHENY 

TELBDYNE. INC, TBLHDYNB INDUSTRIES 

INC.. ALLEGHENY TBLEDYNE, INa , 

TBLEDYNE, ma , TBLEDYNE 

TBCHNOLOQIES, INCORPORATMJ 

TRW, mC , OBA MAINTENANCE SERVICES, 

INC., and ORMOND BEACH AVIATION, INC., 

CASE NO.: 2001-30640-CICI 

JUDGE JOHN R. WATSON, IH 

AFFIDAVrrOF 

DONALD B. SOKIMER 

BEFORE MB, fhie undeimgaed authority, personally appeared Donald B. Sommer, 

who is personally known to me, who. upon bla oath, deposed and atatsd as follows: 

1. I auPtcdidtnt and owTur of Aeroscope^Inc^Bioanifidd, Colorado. Aeroacope^ 

hjD. is involved in fiuensic engineedng. oanqtuter modeling, and &i)iii;e analysis 

ofaiifiamea,eQgne8 and ainsrafi systems. I am ameduuncal engineer with FAA 

pilot xatinga as an Airiina Tmupoct Pilot, Connnetcial Pilot, Fli ^ Instructor, 

Ground biBHuctor. and Airfianw and Powerplant Mechanic. I also hold an FAA 

Dupectioa Aufliorization. My engineering eaqpenence inchides mechanical and 

hydnuilic systems design and testing; instxunuDtatiaa. desisa and i^oduotion of 

iicw products and sttb-componeots, and fidluie analysis. I have over 16.000 hoars 

as pUot in comnumd of aizcraft of all ^a* , ioohidiiig jet and plstoa engine 

airanaft. I have owned and op«rated airotsfi maintenance ftKlUties and bosiness 

ainraft. I ha.ve conducted oumeious airciaA accident tnvestigaiions and 

AfiUavHorDouU B. SoonwOodfrty rt«>i«f7 

fMC8lv«<i OctH»-n»4 MAI FfO.-U34«54Ue 

To-THE WW lAI HW f*f «« 
ia/»l/M»4 13:51 3834654116 SERCBCOre IHC TM ^ " 

n 

n 

reconsttuctions. wreckage inspecdoos, and coosnlted in many aircraft accident 

cases. I hanre been enoployed by flie Plaintiff, Messes Qodfiey and Grace, as an 

aviation consultant to ixxvestigaie the crash of N19222 at Qrmond Beach. Florida 

on July 24,1999. The Cmticnlum Vitae attached as Exhibit 1 to this AfiSdavit is a 

tnic and conect record of my qualifications. 

2. I am a prior owner and operator of several aircraft maintenance ^ilities for 

m^or anid minor repairs and alteniiona. I also owned and operated several fli ^ 

schools, and can attest to the duties of Teledyne Continental Motors and Preoidon 

Aerospace Corporation with respect to warning fhdur customars of potoatiAl 

hazaods conceroing their products. 

3. I have extensive knowledge an4 experience with Precision (formerly MarvdSehd)ler) carburetor defects. I have previously done extensive research, testing 

and analysis relating to aircraft ciaahes caused by defects in Predsttm oatbtttcton, 

and provided testimony in three lawsuits fliat went to trial involving Precinoa 

carburetor dcftcts. These defects inivolve needle valve stidcage, premature parts 

wear out that causes hang-iqis, loose scxews diat attadi the caxburetor bowl 

assembly to the thiotde body, float iotetfoence with die float bowl and a 

propensity for the design to cause incorrect mixture to die wgine. These cases 

include: Blanton v. Teledyne, ot aL, Albeit Eigm v. Textron Lycoioin& et al, and 

Nan ^ Thomas v. Catonsvllle Comnnmity College, et al. In diese three cases and 

the July 24, 1999 crash at Ormond B^h , a dej^tive carburetor caused the 

crashes. The analysis of die crashes made it obvious to ti\e defendants and 

provided fiUGScioit notice to Precision and Teledyne Continental of the detisotive 

design and manufaoturo of their carburetor and the disastrous result of their fiulure 

to address the defects. 

4. A dsfixitivo Piiccision MA-3SPA carfoinretor was installed in the Teledyne 

CoQtineatal Motors O-200A in the Cessna ISOL. registration number H19222, on 

April IS, 1999. The screws holding fta catboretor bowl to die dmmle body 

became loose and the needle valve was found to be interfering with the needle 

valve seat sudi that at the time of the accideot an overly rich fiiel/air mixture 

caused the engine to be inoj^able of SUsiainhlg fligjht 

5. Precdsion and Continental filled in dietr duty to warn die operators and users of 

this known defect in the Piecisicm MA-3SPA carburetor. The Fodetal Aviation 

Administration ntajntajmiH a Service DifiEloulty Dataliase that documents numoous 

problems with tbis caiburetor, including loose bowl screws and float stidcage, 

dating bacJc to the 19708. Both conqiaQies have had anqple time to address flaws 

in the desiga of die carburetor or warn of die exact shortcomings that led to this 

and other catastrophes. 

6. TeKtnm Lycoming, another aircraft aosine manutaotnroc, did warn of the loose 

screw pn^lem widi Service BuUeda No. 366, issued on September 14, 1973. 

This bulletin warns to inspect for fuel stains and loose flirottle body attaching 

AtOanlt or Donald CSoRamr-Codaay P«se2af7 

R««.lv«i 0«t-01-t004 15:U Pr«-J0S4»8411« 
r 

r 

iem«« 4 13:51 3.34654116 ««C « »« P*^ " 

1 

") 

screws on all Lycoming eaginea equqtped with Marvel-Schebier carbur^ors. 

This is dw same type caiburetor as installed on die Continental engine on the 

arcidwDEt aircraft. Ilie bulletin requires insuring die screws are d^itened to the 

ooireot torque of 40 to SO iticih poiinds, and mandates dds be aeeooqilifihed at each 

100 hour inspection. Had Precision or Continental issued a similar service bulletin 

or warning for aircraft with Continental engines, this crath could have been 

avoided. 

7. Precision and Continental had a duQr to inprove the MA-3SPA carfouretor and 

inform the FAA of dielr product's ftaws. There is no record die nunu&cturers 

attempted to bmptavc their fiulty product FAR $33.35 Relates to standards for 

airworthiness of aircraft engine fiid and ioducdon systems. It states, "The fuel 

system of the engine must be designed atxl constructed to siqjply an appropriate 

mixture of jSoiel to dve cylinders ibraa^aatxt the complete operating range of die 

engine under all flight and atmospheric condidons." The MA-3SPA is not in 

compliance ^d i this reguladon because it can siQiply an oveily rich nuxture 

during cridoal phases of flight In this and numerous other oiaabes a loose 

cartniretor bowl and dsfoctive'needle valve and seat oauood the ainraft to be 

incapable of sustaining fli^t Tbis problem could have beoa remedied and would 

have prevented diis crash. 

8. FAR $2'l.3(&) states "Bxcq;>t as provided in paragraph (d) of this section, tfie 

holder of a l^ e Cerdficale including a Siyplwroental Type Certifioate), a Parts 

Manuficturer Approval (PMA), or a TSO authorization, or die licensee of a Type 

Certificate shall report any JMute,- malfimctjon, or defect of any product, part, 

process, or article mami&ctured by it that it determines has resulted in any of the 

occurrences listed in paragraph (c) of this section.** - Paragraph (c) states "The 

following occuncncoa must be rqported as provided in paragraphs (a) and (b) of 

tbis section: (10) An csigilic dilute." 

The MA>3SFA infft^^U*^ on the engine was new and came widi an FAA Form 

8130-3 - Aizworduness Approval Tag. The wording on block 14 of die 8130-3 

states: "Cetdfies that die new or newly overhauled part(8) identijBed above, except 

as otherwioo specified in block 13 was (wero) manufii^ured in accordance -with 

FAA ^i^roved design data and airworthiness." The prooedures for completion 

and use of the 8130-3 aro contained in FAA Order 8130-21 A. Under paragrqih 7 

of tills order, the following note is ^^Ucablc: *n[1ie issuance of the form in no 

way affects the manu&oturer's obligation luder Part 21 to conqily v/Hk its 

approved quality system, and to ensive every product presented to tiieFAAorits 

designees for issuance of the form conforms to its FAA-approvcd design and is in 

a safe condldon of operadon." Qeaily the MA-3SPA carburetor provided by 

Precision and Continental did not conform to its approved design nor was it in a 

safe condidon of operation. The <itkaCty oontxol system eo^ioyed by die 

tnanufactmrera fitiled in this instance and namerous others documented by the 

FAA and my inveadgadons. 

ASUnit«fr>(MUEScn<mw-09«kv I>iae3«f7 

( ) •. 

itwsivwl Oct-«l-t«a4 ISstt Fr«a-30M«54U6 
18/81/2884 13:51 3B34654116 

AERCBCOPE INC PAGE 85 

o 

10. Rqilacement products, tike MA-3SPA caxburetois. provide a substantial 

aftennarkei inoomo for manuftcturets like Predoion and ContinentaL By failing 

to improvo thieir products, these companies iosuro contiinied aftexmarket sales to 

maintenance ftcilities and aircraft operators. 

FURTEDSR AFFIANT SAYEIH NOT 

Donald E. Sommer 

o 

BEFORE ME, the tmdersigned authority, on dus date personally iqpipeared Donald 

B. Sommer, who being by me duly sworn, deposed and said tbat he is Donald B. 

Sommer. that he executed die foregoing instrument for the purposes and consideration 

therdn expressed and that each wnrranty aiKl representation, aa well as the other contenta 

of and statements in die fiiregoing Instrament, ate true and correct 

SUBSCRIBED AND SWORN TO BEFORE MB by die said Donald E. Sommer on this 

The /^ ^ day of ^r.y- 2004. 

MY COMMISSION EXPIRES: 

0^24-2008 

( ) 

Affidavit of Dendd ES«inn«-Qadft«y P4>4<)f7 

Rsctivtd 0ct-«l-t004 15:lt Froa-3(J34654n6 

Tti-nC iOUl LAW FIW Paw «<» 
McSwain Engineering, Inc. 

Materials Engineering Investigation 

Supplemental Report 

Godfrey & Grace v. 

Precision Airmotive Corp., et al 

February 21, 2006 

McSwain Engineering, Inc. 

Kngineering Authorizafion No. 6338 
McSWAIN ENGINEERING, INC. 

3320 McLemore Drive 

P.O. Box 10888 

Pensacola, Florida 32524-0888 

(850)484-0506 

FAX (850) 484-0508 

Materials Engineering Supplemental Report 

February 21,2006 

Reference: 

Accident Aircraft; 

Accident Engine: 

Accident Date: 

Accident Location: 

Godfrey & Grace v. Precision Airmotive 

Corp., et al 

Cessna 150L, N19222 

Teledyne Continental O-200-A48 

July 24, 1999 

Ormond Beach, FL 

1.0 Introduction 

Additional laboratory examinations and analysis have been 

performed related to the investigation of the subject failed 

Precision Airmotive MA-3SPA carburetor, P/N 10-4894-1, S/N 

75082908, since the initial materials engineering report 

dated December 17, 2003. Both laboratory and field testing 

of Precision Airmotive MA-3SPA carburetors and field testing 

of a Precision Airmotive MA-4SPA carburetor have been 

performed. This supplemental disclosure describes those 

activities and findings which further support my opinions in 

the subject case. The procedures utilized in this 

engineering investigation were in accordance with ASTM E2332-

04 and have been accepted and presented in U.S. federal 

courts, state courts, and Canadian courts. 

2 .0 Precision Airmotive MA-3SPA (Teledyne Continental 0-200-A) 

vs. Precision Airmotive MA-4SPA (Lycoming O-320-E2D) 

Carburetor Vibration Testing 

Vibration tests were performed on a Precision Airmotive MA3SPA carburetor, P/N 10-4894-1 on a Teledyne Continental O200-A engine installed in a Cessna 150L aircraft, as shown in 

Enclosure 1. The carburetor was instrumented with two 

triaxial PCB Piezotronics model number 356A16 accelerometers 
I which measured vibration in both the vertical axis as well as 

the two horizontal axes. Both the throttle body and the bowl 

r* were instrumented. The vibration data obtained showed that 

I significant carburetor vibration occurred throughout the 

operational RPM range of the engine and that the maximum 

accelerations exceeded 2.0 Gs vertically and 1.1 Gs 

horizontally. 

Vibration tests were performed on a Precision Airmotive MA4SPA carburetor, P/N 10-5009 on a Lycoming O-320-E2D engine 

in a Cessna 172M aircraft, as shown in Enclosure 2. 

Accelerometers were mounted in a similar manner to the test 

performed on the Teledyne Continental O-200-A engine 

carburetor. Significant carburetor vibrations were measured 

throughout the operational range of RPMs for the Lycoming O320-E2D engine. The maximum accelerations measured exceeded 

0.9 Gs vertically and 1.7 Gs horizontally. 

Vibration tests were also performed on a Precision Airmotive 

MA-3SPA carburetor, P/N 10-4895-1, on a Teledyne Continental 

O-300-D engine installed in a Cessna 172H aircraft, as shown 

in Enclosure 3. The vibration data obtained showed 

significantly less carburetor vibration throughout the 

operational RPM range of the engine. 

Vibration tests were also performed on a Precision Airmotive 

MA-4SPA carburetor, P/N 10-3678-32, on a Lycoming O-320 

engine installed in a Piper PA28-140 aircraft, as shown in 

Enclosure 4. The vibration data obtained showed significant 

carburetor vibration throughout the operational RPM range of 

the engine. 

Comparison of the test data from the Teledyne Continental 0-

200-A with a Precision Airmotive MA-3SPA carburetor to the 

Lycoming O-320-E2D engine with a Precision Airmotive MA-4SPA 

carburetor revealed that both engines demonstrated 

significant and comparable vibrations acting on the 

carburetor in both the vertical and horizontal axes. 

3.0 Precision Airmotive MA-3SPA Carburetor Float/Needle Valve 

Buoyancy Force Testing 

Tests were performed to measure the Precision Airmotive MASSPA carburetor float buoyancy-induced force on the needle 

valve. A MA-3SPA carburetor was drilled to access the top of 

the needle with a force gauge. Stoddard solvent was used to 

lift the float and the needle position and force were 

r,g f 2 o l 14 
measured, as shown in Enclosure 5, The buoyancy-induced force 

acting on the needle at an opening position of 0.026 inches 

was 0.91 ounces (0.059 Ibf). The float buoyancy force vs. 

needle drop is shown graphically in Enclosure 5B. 

4.0 Precision Airmotive MA~3SPA Carburetor Needle Valve Retractor 

Clip Force Testing 

Tests were performed to measure the Precision Airmotive MASSPA carburetor needle valve retractor clip force. A force 

gauge was attached to the needle valve and the force induced 

by the floats through the retractor clip was measured, as 

shown in Enclosure 6. The maximum needle retraction measured 

was 2.5 ounces (0.156 Ibf). 

5- 0 Carburetor Material Selection Comparisons 

The Precision Airmotive aircraft carburetor is a derivative 

of the original Marvel-Schebler tractor carburetor, as shown 

in Enclosure 7A. The original Marvel-Schebler tractor 

carburetor utilized a stainless steel needle valve in a brass 

seat, as shown in Enclosure 73. Stainless steel contacting 

brass is a known defective wear couple which results in 

excessive wear to the brass. Precision Airmotive 

acknowledged that stainless steel on brass is a defective 

wear couple, as cited in United States Patent 5,385,697 

issued to Precision Employee Randy Jensen, the patent 

incorporates material improvements that provide increased 

wear benefits by incorporating a stainless steel needle valve 

and a stainless steel spring clip instead of the prior design 

that consisted of the stainless steel needle valve and the 

brass float plate. 

A current design Ford P/N 8N9510C tractor carburetor, which 

is based on the original Marvel-Schebler tractor carburetor 

design, is shown in Enclosure 8. The Ford tractor carburetor 

appears substantially similar to the original Marvel-Schebler 

design. However, the needle valve material selection in the 

current Ford tractor carburetor has changed to a brass needle 

valve in a brass seat. 

The original Marvel-Schebler (Precision) MA-3SPA aircraft 

carburetor design utilized a brass float attached to a brass 

float plate. The design was subsequently changed to a 

composite float material, back to a brass float material, 

then to a hollow polymer float material, and most recently to 

' ' Psga 3 of 14 
a solid polymer float material attached to a stainless steel 

float plate. The changes in float design were made due to 

malfunction of the fuel metering system and float interaction 

with the needle valve. 

The hollow polymer float version of the Precision Airmotive 

MA-3SPA carburetor is shown in Enclosure 9A. The hardness of 

the stainless steel needle valve, as shown at the arrow in 

9A, is 2 9 HRC and the seat hardness is 71 HRB. The 

differential hardness results in accelerated wear of the 

needle valve seat in the MA-3SPA carburetor. 

Marvel-Schebler (Precision) MA4-5 carburetors have been 

examined which utilized a stainless steel needle valve and a 

stainless steel seat, as shown at the arrow in Enclosure 9B. 

The MA4-5 needle valve hardness is 31 HRC and the seat 

hardness is 28 HRC. The origin of the Marvel-Schebler 

stainless steel needle valve and stainless steel seat design 

is unknown. No Precision Airmotive documents have been 

produced to date to indicate the history of the stainless 

steel needle valve and stainless steel seat material 

combination. 

Exemplar automotive-type carburetors were also obtained and 

evaluated for the needle valve and seat material selection 

combination. An Edelbrock P/N 1405 automotive carburetor is 

shown in Enclosure lOA. The needle valve assembly utilizes a 

brass needle in a brass seat, as shown at the arrow in 

Enclosure lOB. 

A Demon P/N BG4282010 automotive carburetor was also obtained 

for evaluation, as shown in Enclosure 11. The Demon 

carburetor needle valve assembly utilizes a brass needle in a 

brass seat, as shown at the arrows in Enclosure llA and IIB. 

The Demon design also provides venting of fuel at the needle 

valve tip, which provides a path for fuel flow and debris to 

exit the needle valve at the tip of the needle. 

A Holley P/N 0-80570 automotive carburetor was also obtained 

for evaluation, as shown in Enclosure 12. The Holley 

carburetor needle valve assembly is similar to the Demon 

carburetor assembly and utilizes a brass needle in a brass 

seat, as shown at the arrow in Enclosure 12A and 12B. The 

Holley design needle valve is also vented to allow fuel flow 

and debris to exit the valve seat at the tip of the needle. 

The Holley carburetor design encompasses a bowl overflow vent 

which precludes fuel from entering the carburetor throat in 

the event of a sticking needle valve. 

-— - ______ 
A BMW Bing P/N 13111338089 motorcycle carburetor was also 

obtained for examination, as shown in Enclosure 13A. The BMW 

carburetor needle valve assembly also utilizes a brass needle 

in a brass seat, as shown in Enclosure 13B, The BMW 

motorcycle carburetor incorporates a fuel bowl overflow drain 

in order to prevent excessive fuel in the bowl from entering 

the carburetor throat area. Examination of a Honda motorcycle 

carburetor revealed a similar feature. 

A comparison of the materials utilized and hardness of the 

various needle valves and seats revealed that the Precision 

Airmotive MA-3SPA needle valve and seat material combination 

is the only combination to have a significant hardness 

differential when compared to all the other carburetor needle 

valves and seats examined. The materials utilized and the 

hardnesses of each the exemplar needle valves and seats are 

given in Enclosure 14. 

6.0 Precision Airmotive MA-3SPA Carburetor Throttle Body-to-Bowl 

Fastener Residual Torque Testing 

A new Precision Airmotive MA-3SPA carburetor. Enclosure 15A, 

was evaluated for residual torque condition on the throttle 

body-to-bowl fasteners. The fasteners were marked for 

location and the breakaway torques, as well as the fastener 

re-torque values, were recorded. The Precision Airmotive MASSPA carburetor torque specification for the throttle bodyto-bowl fasteners is 35 to 4 5 inch-pounds. The new 

carburetor re-torques were found to range from 22 inch-pounds 

to 27 inch-pounds. The initial assembly clamp-up forces due 

to fastener torque are lost in the Precision Airmotive 

carburetor assembly due to compression set of the gasket 

material. Areas of compression set of the Precision 

Airmotive MA-3SPA gasket material are shown at the arrows in 

Enclosure 158. 

Numerous used Precision Airmotive MA-3SPA carburetors were 

also evaluated for residual torque. The throttle body-tobowl re-torque values ranged from 0 to 7 inch-pounds. 

7.0 Precision Airmotive MA-3SPA Carburetor Gasket Material 

Compression Set Testing 

A creep relaxation test was performed on Precision Airmotive 

MA-3SPA carburetor gasket material, as shown in Enclosure 16, 

______ 
per the procedures given in ASTM F38-00. The compression set 

tests showed that the MA-3SPA gasket material will relax by 

0.0007 inch in 80 minutes and 0.0009 inch in 22 hours. A 

similar test was performed on a Precision Airmotive MA-3SPA 

carburetor. After 1 hour, 36% of the clamping torque was 

lost. 

Examination of the Bendix (Precision Airmotive) RSA-5 Fuel 

Injector Servo Assembly technical manual and service bulletin 

revealed that Precision Airmotive requires a re-torque of 

fasteners on the fuel injection regulator hold down screws 10 

minutes after original assembly. This re-torque requirement 

acknowledges the compression set characteristics of the 

gasket material in the Bendix (Precision Airmotive) RSA-5 

fuel injector assembly body. However, Precision Airmotive 

has never required that the torque on the MA-3SPA carburetor 

fasteners be checked after carburetor assembly. 

Lycoming has issued Service Bulletin 366 for Precision 

Airmotive carburetors which requires that the torque on the 

throttle body-to-bowl fasteners be checked every 100 hours. 

Neither Precision Airmotive nor Teledyne Continental has ever 

issued a service bulletin requiring the re-torque of the 

throttle body-to-bowl fasteners on the MA-3SPA carburetor. 

8.0 Precision Airmotive MA-3SPA Fastener Clamping Force Testing 

The fastener clamping force acting on the throttle body-tobowl joint was measured using pressure sensitive film, as 

shown in Enclosure 17. Assembly using 40 inch-pounds fastener 

torque revealed a non-uniform clamping force on the gasket 

between the throttle body and the bowl. The pressure between 

the two closely spaced fasteners was approximately 4,000 psi. 

The pressure at the side of the bowl between the two widely 

spaced fasteners was approximately 800 psi or less. The 

average force for the interface was 2670 Ibf. Assembly using 

4.5 inch-pounds of fastener torque also revealed a nonuniform clamping force on the gasket between the throttle 

body and the bowl. The pressure between the two closely 

spaced fasteners was approximately 98 Ibf. The pressure at 

the side of the bowl between the two wide spaced screws was 

approximately 70 Ibf or less. The average force for 

interface was 235 Ibf. 

Pagt e sf 14 
9.0 Precision Airmotive MA-3SPA Throttle Body-to-Bowl Tab Lock 

Washer Testing 

The Precision Airmotive MA-3SPA carburetor utilizes 

deformable tab lock washers on the four throttle body-to-bowl 

fasteners in an attempt to secure the fasteners in place. The 

deformable tab lock washers were the result of a design 

change from the original safety wired throttle body-to-bowl 

fastener design. 

Tests were performed on an MA-3SPA carburetor using new tab 

lock washers. The Precision Airmotive MA-3SPA manual requires 

that the four throttle body-to-bowl fasteners be tightened to 

35 to 45 inch-pounds followed by the bending of at least two 

of the four lock tabs toward the head of each fastener. The 

Precision Airmotive instructions don't warn of insufficient 

bending of the tabs to maintain contact with the fastener 

head. Testing revealed that approximately 45 pounds force was 

required to bend a tab to the head of a fastener, as shown in 

Enclosure 18A. After bending, the tab was observed to spring 

back 0.010 inch, as shown in Enclosure 18B. If the tab lock 

washers are bent so that a clearance of 0.015 inches exists 

between the tab and the corners of the fastener head, the 

fastener can rotate freely within the tab lock washer, thus 

defeating the tab lock feature. 

If the clamp-up between the throttle body and bowl is 

insufficient to prevent rotation of the throttle body-to-bowl 

fasteners, the fasteners can back out of the bowl. As a 

result of the shape of the carburetor throttle body casting, 

the fasteners and lock washers are free to rotate until the 

lock washer legs contact the throttle body casting in a 

tightening or loosening direction. Counterclockwise rotation 

of the fastener and lock washer to the throttle body casting 

limits results in a loose fastener condition. 

10.0 Precision Airmotive MA-3SPA Throttle Body Fastener Hole 

Marking Evaluation 

A new Precision Airmotive MA-3SPA carburetor was obtained and 

examined for the condition of the throttle body fastener hole 

surfaces. Examination of the surfaces revealed sharp marks 

with rotational smearing from installation of the fasteners, 

as shown in Enclosures 19A and 19B. The presence of the 

fastener contact marks in the throttle body of a new MA-3SPA 

carburetor is the result of misalignment of the holes in the 

carburetor bowl with respect to the throttle body. The 

_-_j—-— — 

H 
threads of the fasteners can contact and cut the throttle 

body hole during the assembly process. The result is a drag 

on the fasteners during installation which results in an 

inadequate clamping force applied to the throttle body-tobowl joint. 

Numerous used MA-3SPA carburetors were obtained from the 

field for examination of the throttle body fastener holes. 

The throttle body fastener hole surfaces exhibited marks 

similar to those observed in the new MA-3SPA carburetor. 

11.0 Precision Airmotive MA-3SPA Throttle Body Fastener Hole 

Impact Testing 

An impact test was performed in which a mass of 5.8 pounds 

was dropped a distance of 21 inches onto a throttle body-tobowl fastener which resulted in impact marks on the finished 

throttle body fastener hole surface. The drop test fixture 

is shown in Enclosure 20A and the resulting marks on the 

throttle body fastener hole are shown in Enclosure 20B. 

Examination of the impact-induced marks revealed brinnel type 

features with no horizontal or vertical smearing or 

polishing. The resulting marks would correspond to fastener 

marks caused by aircraft ground impact. The marks were 

significantly different from the marks observed in the 

fastener holes for the subject MA-3SPA carburetor from the 

accident aircraft. 

12.0 Precision Airmotive MA-3SPA Throttle Body Fastener Hole 

Shaker Testing 

A laboratory vibration test was performed on a Precision 

Airmotive MA-3SPA carburetor to evaluate the characteristics 

of fastener thread marks left on a throttle body fastener 

hole surface caused by a loose bowl condition. The 

vibration test fixture is shown in Enclosure 21A and the 

resulting marks on the throttle body fastener hole surface 

shown in Enclosure 21B. The resulting marks caused by the 

loose bowl condition exhibited surface polishing and axial 

marks caused by axial motion of the fastener with respect to 

the throttle body hole surface. The marks are similar to 

those observed on the subject MA-3SPA carburetor throttle 

body fastener holes. 

P*ga a ot 14 
13.0 Precision Airmotive MA-4SPA Carburetor Needle Valve/Float 

Sticking Effects 

Field tests were performed on a Precision Airmotive MA-4SPA 

Carburetor mounted to a Lycoming O-320-E2D engine in which 

the float was prohibited from rising with the fuel level in 

the bowl, as shown in Enclosure 22. The result of 

restriction of the needle valve movement was overflow of 

unmetered fuel into the throat of the carburetor. 

Similar tests were performed on a MA-3SPA carburetor in the 

laboratory. The tests demonstrated that restriction of the 

movement of the MA-3SE>A carburetor float prevented the float 

from tracking with the fuel level to shut off the fuel flow 

at the needle valve. The restriction of the needle valve 

movement resulted in an overflow of the carburetor bowl and 

entry of unmetered fuel into the throat of the carburetor, as 

shown in Enclosure 23. 

14.0 Discussion 

The Precision Airmotive MA-3SPA carburetor has a potential 

failure mode whereby the restriction of float movement 

results from a number of materials issues within the 

carburetor, including float sinking due to fuel entry into 

the float resulting from cracking or failure to properly seal 

the float, float drag on the side of the carburetor bowl due 

to wear of the float hinge and/or hinge pin, needle valve 

sticking within the seat due to debris generation caused by 

needle valve flaking, needle valve sticking within the seat 

due to debris generation caused by needle valve seat wear, 

and needle valve sticking due to wear and grooving of the 

needle valve seat. Restriction of the motion of the float 

and inability of the float to track the fuel level in the 

bowl results in the inability of the needle valve to properly 

seat, fuel rising in the carburetor bowl and unmetered fuel 

entry into the throat of the carburetor. 

The lack of a fuel bowl overflow failure counter-measure in 

the event that the needle valve is no longer free to regulate 

fuel flow into the bowl results in unmetered fuel entry into 

the throat of the carburetor and the engine. 

rag* } or 14 
15.0 Conclusions 

The following conclusions have been reached to date based on 

review of case documents, literature research, laboratory 

examination and analysis, and testing of exemplar components. 

1. The Precision Airmotive MA-3SPA carburetor utilized in 

the Teledyne Continental O-200-A engine and the 

Precision Airmotive MA-4SPA carburetor utilized in the 

Lycoming O-320-E2D engine both exhibit similar 

operational vibrations that are significant in magnitude 

through the operational RPM range for the engines. 

Basis: Field Testing 

2. The Precision Airmotive MA-3SPA carburetor uses float 

rise and fall with fuel level to regulate fuel flow by 

the needle valve. The force acting to close the needle 

valve by float buoyancy is 0.91 ounces at a needle valve 

opening of 0.026 inches. 

Basis: Laboratory Testing 

3. The Precision Airmotive MA-3SPA carburetor retractor 

clip force acting to retract the needle from the seat by 

the weight of the floats is 2.5 ounces. 

Basis: Laboratory Testing 

4. The Precision Airmotive MA-3SPA aircraft carburetor is 

derived from a Marvel-Schebler tractor carburetor which 

utilized a stainless steel needle valve in a brass seat. 

Basis: Laboratory Analysis and Review of Technical 

Data 

5. The original Marvel-Schebler MA-3SPA aircraft 

carburetors design utilized hollow brass floats and a 

brass float plate which contacted a stainless steel 

needle valve in a brass seat. 

Basis: Laboratory Analysis 

6. The Precision Airmotive MA-3SPA aircraft carburetor 

floats have undergone numerous material changes due to 

malfunction of the fuel metering system and float 

interaction with the needle valve. 

Paga 10 oC 14